Non-combustion heating type flavor inhaler

ABSTRACT

A non-combustion heating type flavor inhaler according to the present invention is provided with: an electrical heating type device provided with an inductor for electromagnetic induction heating; and a non-combustion heating type flavor inhalation article. The electrical heating type device is provided with the inductor for electromagnetic induction heating, a power source that supplies operation power to the inductor, a control unit for controlling the inductor, and a heating chamber into which the non-combustion heating type flavor inhalation article can be inserted via an insertion slot. At least two protrusions for securing the non-combustion heating type flavor inhalation article that has been inserted into the chamber are provided on side walls that form the cavity of the chamber, and the height of these protrusions from the side walls is 0.3-2.0 mm, inclusive. The non-combustion heating type flavor inhalation article is such that the compression change rate of each segment, as measured by pressing the airflow-direction central part thereof against a flavor-generating segment and a mouthpiece segment, is 70% or greater.

CROSS REFERENCES TO RELATED APPLICATIONS

This application is a Continuation of PCT International Application No.PCT/JP2022/016078, filed on Mar. 30, 2022, which is claiming priorityfrom PCT International Application No. PCT/JP2021/014097, filed on Mar.31, 2021 and PCT International Application No. PCT/JP2021/014098, filedon Mar. 31, 2021, and the entire contents of which are incorporatedherein by reference.

TECHNICAL FIELD

The present invention relates to a non-combustion-heating-type flavorinhalation product.

BACKGROUND ART

In the related art, there has been proposed an aerosol generating deviceincluding a heating element, such as a susceptor, and a porous mediumthat is filled with a gel containing an aerosol forming material (e.g.,PTL 1 to PTL 6).

CITATION LIST Patent Literature

-   PTL 1: International Publication No. 2020/127116-   PTL 2: International Publication No. 2020/025562-   PTL 3: International Publication No. 2019/197170-   PTL 4: International Publication No. 2020/216762-   PTL 5: International Publication No. 2020/216765-   PTL 6: International Publication No. 2020/249661

SUMMARY OF INVENTION Technical Problem

It is an object of the present invention to improve the performance of anon-combustion-heating-type flavor inhalation product.

Solution to Problem

The gist of the present invention is as follows.

[1] A non-combustion-heating-type flavor inhalation product comprisingan electrical heating type device comprising an inductor forelectromagnetic induction heating and a non-combustion-heating-typeflavor inhalation article used together with the electrical heating typedevice,

-   -   wherein the electrical heating type device comprises        -   an inductor for electromagnetic induction heating,        -   a power source that supplies operation power to the            inductor,        -   a control unit for controlling the inductor, and        -   a heating chamber into which the non-combustion-heating-type            flavor inhalation article can be inserted via an insertion            slot,    -   wherein at least two protrusions for securing the        non-combustion-heating-type flavor inhalation article that has        been inserted into the chamber are provided on a side wall that        forms a cavity of the chamber, and a height of the protrusions        from the side wall is greater than or equal to 0.3 mm and less        than or equal to 2.0 mm,    -   wherein the non-combustion-heating-type flavor inhalation        article includes        -   a flavor-generating segment that includes a            flavor-generating-segment filler containing an            aerosol-source material and a plate-shaped susceptor for            electromagnetic induction heating of the            flavor-generating-segment filler and        -   a mouthpiece segment for inhaling a flavor component, and    -   wherein a compression change rate of each of the segments, as        measured by pressing each airflow-direction central part of the        flavor-generating segment and the mouthpiece segment in        accordance with a compression change rate measurement method        below, is 70% or greater.

Compression change rate (%)=100×(Dd (diameter after deformation))/(Ds(diameter before deformation))

-   -   where Dd stands for a diameter of a rod portion that has been        reduced as a result of a load F being applied to the rod        portion, and Ds stands for a diameter of the rod portion before        the load F is applied. In the method, measurement is performed        10 times for each set of 10 samples (100 samples in total), and        an average value of results of the measurement performed 10        times is used as a measurement result.        [2] The non-combustion-heating-type flavor inhalation product        according to [1],    -   wherein the mouthpiece segment includes a cooling segment and a        filter segment, and the cooling segment is positioned upstream        from the filter segment,    -   wherein the non-combustion-heating-type flavor inhalation        article further includes a lining sheet including a first sheet        material at least wrapping a portion of the flavor-generating        segment and a portion of the cooling segment and a second sheet        material disposed outside the first sheet material and at least        wrapping the entire filter segment and a portion of the cooling        segment, and    -   wherein at least two of the protrusions are provided in such a        manner as to come into contact with the second sheet material        when the non-combustion-heating-type flavor inhalation article        is inserted so as to reach a bottom surface that is the deepest        portion of the cavity.        [3] The non-combustion-heating-type flavor inhalation product        according to [2],    -   wherein three of the protrusions are provided in such a manner        as to come into contact with the second sheet material when the        non-combustion-heating-type flavor inhalation article is        inserted so as to reach the bottom surface, which is the deepest        portion of the cavity.        [4] The non-combustion-heating-type flavor inhalation product        according to any one of [1] to [3],    -   wherein the flavor-generating-segment filler comprises at least        one selected from tobacco leaves, shredded tobacco, a tobacco        sheet, tobacco granules, a nicotine-carrying ion-exchange resin,        and a tobacco extract.        [5] The non-combustion-heating-type flavor inhalation product        according to [3],    -   wherein the flavor-generating-segment filler comprises a tobacco        sheet, and the tobacco sheet is inserted in a gathered manner        after being crimped.        [6] The non-combustion-heating-type flavor inhalation product        according to any one of [1] to [5],    -   wherein a filling density of the flavor-generating-segment        filler in the flavor-generating segment is greater than or equal        to 0.2 g/cm³ and less than or equal to 0.7 g/cm³.        [7] The non-combustion-heating-type flavor inhalation product        according to any one of [1] to [6],    -   wherein the mouthpiece segment further includes a filter        segment, and the filter segment includes a filter element and        wrapping paper wrapping the filter element, the wrapping paper        having a thickness of 40 μm to 100 μm, and a basis weight of 23        gsm to 90 gsm.        [8] The non-combustion-heating-type flavor inhalation product        according to [7],    -   wherein the non-combustion-heating-type flavor inhalation        article further includes an end segment and a support segment,        and the end segment, the support segment, and the filter segment        contain cellulose acetate fibers.        [9] The non-combustion-heating-type flavor inhalation product        according to [8],    -   wherein the end segment, the support segment, and the filter        segment are each a solidified member containing cellulose        acetate fibers and a plasticizer. Note that the contents        described in Solution to Problem can be combined to the fullest        extent possible without departing from the problem and the        technical idea of the present invention.

Advantageous Effects of Invention

According to the present invention, the performance of anon-combustion-heating-type flavor inhaler can be improved.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a diagram schematically illustrating a configuration of anon-combustion-heating-type flavor inhalation product according to thepresent embodiment.

FIG. 2 is a diagram schematically illustrating the configuration of thenon-combustion-heating-type flavor inhalation product according to thepresent embodiment.

FIG. 3 is a diagram illustrating an example of anon-combustion-heating-type tobacco.

FIG. 4 is a perspective view illustrating an example of a plate-shapedsusceptor.

FIG. 5 is a diagram schematically illustrating a method of manufacturingthe plate-shaped susceptor.

FIG. 6 is a plan view depicting a modification of the plate-shapedsusceptor.

FIG. 7 is a plan view depicting another modification of the plate-shapedsusceptor.

FIG. 8 is a diagram depicting a cut surface of the plate-shapedsusceptor.

FIG. 9 is a diagram depicting a modification of a flavor-generatingsegment.

FIG. 10 is a diagram depicting a method of manufacturing theplate-shaped susceptor that has been coated.

FIG. 11 is a diagram depicting a modification of a coating layer.

FIG. 12 is a diagram depicting another modification of the coatinglayer.

FIG. 13 is a diagram depicting another modification of the coatinglayer.

FIG. 14 is a diagram depicting a modification of thenon-combustion-heating-type tobacco.

FIG. 15 is an example of a longitudinal sectional view obtained bycutting the non-combustion-heating-type tobacco along a width directionof the plate-shaped susceptor.

FIG. 16 is a diagram depicting a modification of a lining sheet.

FIG. 17 is a diagram depicting a gluing pattern of the lining sheet.

FIG. 18 is a diagram depicting another modification of a lining sheet.

DESCRIPTION OF EMBODIMENTS

An embodiment of a non-combustion-heating-type tobacco according to thepresent invention will be described with reference to the drawings. Thedimensions, the materials, the shapes, the relative arrangement, and soforth of the components described in the present embodiment areexamples. In addition, the order of steps is an example and can bechanged, or the processes can be performed in parallel as long as theydo not depart from the problem and the technical idea of the presentinvention. Thus, the technical scope of the invention is not limited tothe following examples unless otherwise specified.

Note that, in the present specification, when numerical values orphysical property values are mentioned before and after an expression“to”, it implies that the range includes the values mentioned before andafter “to”.

<Non-Combustion-Heating-Type Flavor Inhalation Product>

FIG. 1 is a diagram schematically illustrating an example of theconfiguration of a non-combustion-heating-type flavor inhalation productaccording to the present embodiment. A non-combustion-heating-typeflavor inhalation product 1 according to the present embodiment includesa non-combustion-heating-type tobacco (non-combustion-heating-typeflavor inhalation article) 2 and an electrical heating type device 3that heats a flavor-generating segment 21 of thenon-combustion-heating-type tobacco 2 by electromagnetic inductionheating.

The electrical heating type device 3 includes a body 31, an inductor forelectromagnetic induction heating 32, a battery unit (a power source) 33that supplies operation power to the inductor 32 so as to cause theinductor 32 to operate, and a control unit 34 that controls theinductor. The body 31 has a tubular cavity 35 and an airflow path 36,the air flow path 36 extending through the body 31 from a bottom surfaceof the cavity 35, which is the bottommost portion (i.e., the deepestportion) of the cavity 35, to an outer surface of an airflow-directionend portion of the body 31, and the inductor 32 is disposed on an innerside surface of the cavity 35 so as to be located at a positioncorresponding to the flavor-generating segment of thenon-combustion-heating-type tobacco 2 inserted into the cavity 35. Morespecifically, the cavity 35 is a heating chamber into which thenon-combustion-heating-type flavor inhalation article can be insertedvia an insertion slot. Note that, although the airflow path 36 in theelectrical heating device 3 in FIG. 1 is a through hole linearlyextending between the bottom surface of the cavity 35 and the outersurface of an airflow-direction end portion of the body 31, the shape ofthe airflow path 36 is not particularly limited as long as it extendsthrough the body 31 from the bottom surface of the cavity 35 to theouter surface of the body 31. For example, the airflow path 36 may havean L shape and extend between the bottom surface of the cavity 35 to aside surface end portion of the body 31. A manual operation of anoperation switch or the like provided on the body 31 may be a triggerfor causing the electrical heating type device 3 to operate.Alternatively, the electrical heating type device 3 may be automaticallyactivated in response to a user inserting thenon-combustion-heating-type tobacco 2 into the cavity 35 of theelectrical heating type device 3. Alternatively, airflow resistance maybe generated by engaging an end of the non-combustion-heating-typetobacco opposite to an inhalation port of thenon-combustion-heating-type tobacco with a portion of the cavity 35against which the end abuts may be engaged.

The battery unit 33 supplies a DC current. The control unit 33 includesa DC/AC inverter for supplying a high-frequency AC current to theinductor 32. When the device operates, a high-frequency alternatingcurrent passes through a dielectric coil that forms a portion of theinductor 32. As a result, the inductor 32 generates a fluctuatingelectromagnetic field. The frequency of the electromagnetic fieldfluctuates by 1-30 MHz, inclusive, preferably 2-10 MHz, inclusive, andmore preferably, for example, 5-7 MHz, inclusive.

The non-combustion-heating-type tobacco 2 is designed so as to operatein synchronization with the use of the electrical heating type device 3that electrically operates. The non-combustion-heating-type tobacco 2includes a susceptor having a plate-like shape (a plate-shapedsusceptor) 212 in the flavor-generating segment 21 containing fillers(flavor-generating-segment fillers) 211, and the plate-shaped susceptor212 heats the fillers 211 or the like by electromagnetic induction. Thefillers 211 are, for example, shredded tobacco including anaerosol-source material. The plate-shaped susceptor 212 is made of amaterial, such as a metal, for converting electromagnetic energy intoheat.

When the non-combustion-heating-type flavor inhalation product 1 isused, a user inserts the non-combustion-heating-type tobacco 2 into theelectrical heating type device 3 such that a portion including theplate-shaped susceptor 212 is positioned close to the inductor 32. Theinductor 32 is disposed around the cavity 35 of the electrical heatingtype device 3. When the non-combustion-heating-type tobacco 2 isinserted into the cavity 35 of the electrical heating type device 3, theplate-shaped susceptor 212 of the non-combustion-heating-type tobacco 2is positioned in the fluctuating electromagnetic field generated by theinductor 32. Then, the fluctuating electromagnetic field generates aneddy current in the plate-shaped susceptor 212, and as a result, theplate-shaped susceptor 212 is heated. Further heating is provided bymagnetic hysteresis loss in the plate-shaped susceptor 212.

Subsequently, the plate-shaped susceptor 212, which has been heated,heats the fillers 211 of the non-combustion-heating-type tobacco 2 to atemperature sufficient to form an aerosol. In this case, the temperatureto which the fillers 211 are heated may be, for example, 250-400° C.,inclusive. Although not particularly limited, a heating temperature byan electrical heating type tobacco product is preferably 400° C. orlower, more preferably 150-400° C., inclusive, and further preferably200-350° C., inclusive. The aerosol generated by heating passes througha mouthpiece segment 22 and is inhaled by the user.

The shape of the cavity 35 of the electrical heating type device 3 isnot particularly limited as long as the non-combustion-heating-typetobacco 2 can be inserted into the cavity 35 and may be, for example, acylindrical shape or a polygonal columnar shape such as a quadrangularprism or a pentagonal prism. However, considering the holding stabilityof the non-combustion-heating-type tobacco 2, it is preferable that thecavity 35 have a cylindrical shape. In the case where the shape of thecavity 35 is a cylindrical shape, the diameter of the cylindrical shapecan be suitably selected in accordance with the size of thenon-combustion-heating-type tobacco 2. However, the diameter is, forexample, 5.5-8.0 mm, inclusive, preferably 6.0-7.7 mm, inclusive, andmore preferably 6.5-7.2 mm, inclusive. In the case where the shape ofthe cavity 35 and the shape of the non-combustion-heating-type tobacco 2are both a cylindrical shape, it is preferable that the diameter of thecavity be equal to or larger than a value obtained by subtracting 0.5 mmfrom the diameter of the non-combustion-heating-type tobacco 2 and equalto or smaller than the diameter of the non-combustion-heating-typetobacco 2. By setting the diameter of the cavity within this range, theholding stability of the non-combustion-heating-type tobacco 2 can beimproved, and in addition, the gap between the cavity 35 and thenon-combustion-heating-type tobacco 2 can be reduced, so that a desiredairflow resistance can be obtained.

As illustrated in FIG. 2 , protrusions 37 for securing thenon-combustion-heating-type tobacco 2 may be provided on side walls (theinductor 32 in FIGS. 1 and 2 ) forming the cavity 35. Although theheight of each of the protrusions 37 from their respective side wallsforming the cavity 35 is not particularly limited, from the standpointof the holding stability of the non-combustion-heating-type tobacco 2,the height is, for example, 0.3-2.0 mm, inclusive, preferably 0.5-1.5mm, inclusive, and more preferably, 0.5-1.0 mm, inclusive. In the casewhere the shape of the cavity 35 and the shape of thenon-combustion-heating-type tobacco 2 are both a cylindrical shape, itis preferable that the diameter of the bottom surface of the cavity beequal to or larger than a value obtained by adding 0.5 mm to thediameter of the non-combustion-heating-type tobacco 2 and equal to orsmaller than a value obtained by adding 1.5 mm to the diameter of thenon-combustion-heating-type tobacco 2 from the standpoint of the holdingstability of the non-combustion-heating-type tobacco 2. By setting thediameter of the bottom surface of the cavity within this range, theholding stability of the non-combustion-heating-type tobacco 2 can beimproved, and in addition, a predetermined gap can be formed between thecavity 35 and the non-combustion-heating-type tobacco 2 can be reduced,so that unintentional deformation of the non-combustion-heating-typetobacco 2 can be prevented. In addition, the cross-sectional area of thenon-combustion-heating-type tobacco 2 can be changed by the protrusions37, and thus, a desired airflow resistance can be obtained.

<Non-Combustion-Heating-Type Tobacco (Non-Combustion-Heating-Type FlavorInhalation Article)>

FIG. 3 is a diagram illustrating an example of anon-combustion-heating-type tobacco (a non-combustion-heating-typeflavor inhalation article). The non-combustion-heating-type tobacco 2 isa non-combustion-heating-type tobacco that is used together with anelectrical heating type device provided with an inductor forelectromagnetic induction heating and includes a flavor-generatingsegment 21 and the mouthpiece segment 22. The mouthpiece segment 22 is amember for inhaling a flavor component and includes a cooling segment 23and a filter segment 24. The flavor-generating segment 21, the coolingsegment 23, and the filter segment 24 are arranged in such a manner asto be continuous with one another in a predetermined direction andwrapped with a lining sheet 25. A direction in which the aerosolgenerated in the flavor-generating segment 21 passes through themouthpiece segment 22 and is inhaled by a user will be referred to as anairflow direction. The non-combustion-heating-type tobacco 2 has arod-like shape, particularly a cylindrical shape, and the longitudinaldirection of the non-combustion-heating-type tobacco 2 matches theairflow direction.

The length of the non-combustion-heating-type tobacco in the airflowdirection is not particularly limited and is normally, for example, 30mm or greater, preferably 40 mm or greater, and more preferably 45 mm orgreater. In addition, the length of the non-combustion-heating-typetobacco in the airflow direction is normally 100 mm or less, preferably85 mm or less, and more preferably 55 mm or less.

The width of the bottom surface of the non-combustion-heating-typetobacco having a cylindrical shape is not particularly limited and isnormally, for example, 5.5 mm or more and preferably 6.8 mm or more. Inaddition, the width of the bottom surface of thenon-combustion-heating-type tobacco is normally 8.0 mm or less andpreferably 7.2 mm or less.

The airflow resistance of each non-combustion-heating-type tobacco is,for example, 20-110 mmH₂O, inclusive, preferably 20-80 mmH₂O, inclusive,and more preferably 40-70 mmH₂O, inclusive. Within such a range, anappropriate inhaling sensation can be provided to a user.

When a non-combustion heating tobacco is inserted into a cavity (35) ofan electrical heating type device, the non-combustion heating tobaccomay sometimes become compressed due to the engagement relationshipbetween the shape of the cavity and the outer circumferential shape ofthe non-combustion-heating-type tobacco, or when the non-combustionheating tobacco is inserted so as to reach an abutment position of thecavity, an end surface of the non-combustion heating tobacco engageswith an abutment portion of the cavity, and thus, the airflow resistanceof the non-combustion heating tobacco during use, that is, when thenon-combustion heating tobacco is inserted into the cavity of theelectrical heating type device, may sometimes be increased by 10 mmH₂Oto 20 mmH₂O from the airflow resistance in the above state in which thenon-combustion heating tobacco is not inserted into the cavity. Bydesigning the airflow resistance of the non-combustion heating tobaccosuch that, when the non-combustion heating tobacco is inserted into thecavity, the airflow resistance is, for example, 20-110 mmH₂O, inclusive,preferably 20-80 mmH₂O, inclusive, and more preferably 40-70 mmH₂O,inclusive, an appropriate inhaling sensation can be provided to a user.

The airflow resistance of each non-combustion-heating-type tobacco ismeasured in conformity with an ISO standard method (ISO6565:2015) byusing, for example, an NCQA (manufactured by JT tohsi Co., Ltd.). Theairflow resistance is the difference between the air pressure (anegative pressure) at a mouthpiece end surface of anon-combustion-heating-type tobacco and the atmosphere when air isinhaled from the mouthpiece end surface of thenon-combustion-heating-type tobacco at a predetermined air flow rate(17.5 cc/sec). When the air is inhaled from the mouthpiece end surface,the atmosphere is introduced into the non-combustion heating tobaccofrom an end portion or a side surface of the non-combustion-heating-typetobacco.

The airflow resistance of each segment is measured in conformity with anISO standard method (ISO6565:2015) by using, for example, an airflowresistance measuring instrument (product name: SODIMAX, manufactured bySODIM). The airflow resistance of each segment refers to the differencein air pressure between a first end surface and a second end surfacewhen air is passed from one end surface (the first end surface, that is,one of the bottom surfaces of a cylindrical shape) to the other surface(the second end surface, that is, the bottom surface of the cylindricalshape opposite to the first end surface) at a predetermined air flowrate (17.5 cc/sec) in a state where the air does not pass through theside surfaces of each segment (side surfaces of the cylindrical shape)with respect to the airflow direction. The airflow resistance istypically expressed in units of mmH₂O.

In addition, the compression change rate of each segment, as measured bypressing an airflow-direction central part of the non-combustion heatingtobacco and/or each segment using the Borgwaldt method is one of theindices indicating hardness and is not particularly limited. However,the compression change rate is, for example, 70% or greater, preferably80% or greater, and more preferably, 85% or greater. The upper limit is,for example, 95% or less. By setting such a range, for example, anon-combustion-heating-type flavor inhalation article can be smoothlyinserted into an electrical heating type device and can be preventedfrom becoming greatly deformed or damaged at the time of its insertionor removal.

The Borgwaldt method has been widely used for evaluating the hardnessqualities of tobacco-filled rod parts and filter parts of tobaccoproducts. For example, a load F of 2 kgf is applied to 10 samples at thesame time, the 10 samples being arranged side by side in the horizontaldirection, from the upper side to the lower side by using a measuringinstrument DD60A manufactured by Borgwaldt Co., Ltd. After the load Fhas been applied for 5 seconds, the average of the diameters of rodportions is measured. The compression change rate (%) is expressed bythe following formula.

compression change rate (%)=100×(Dd (diameter after deformation))/(Ds(diameter before deformation))

In the above formula, Dd stands for the diameter of the rod portionreduced by receiving the load F, and Ds stands for the diameter of therod portion before receiving the load F. In this method, the measurementwas performed 10 times for each set of 10 samples (100 samples intotal), and the average value of the 10 measurement results was used asa measurement result obtained by using a method of the related art. Twolower cylindrical rods and two upper cylindrical rods are equallyspaced. When the length of a measurement target rod is shorter than thespace between these two rods, 20 measurement samples are used for onemeasurement.

In addition, the above-mentioned compression change rate is one of theindices indicating hardness, and in general, it may sometimes bereferred to as hardness. Accordingly, in the present specification, thecompression change rate is also referred to as “hardness”.

<Flavor-Generating Segment>

The flavor-generating segment 21 is formed by wrapping the fillers 211and the plate-shaped susceptor 212 with a piece of wrapping paper 213.The fillers 211 may include at least one selected from, for example,tobacco leaves containing an aerosol-source material, shredded tobacco,a tobacco sheet, tobacco granules, a nicotine-carrying ion-exchangeresin, and a tobacco extract, or may be these components. A method offilling the space enclosed by the wrapping paper 213 with the fillers211 are not particularly limited. For example, the fillers 211 may bewrapped with the wrapping paper 213, or the fillers 211 may be injectedinto the area inside the wrapping paper 213 formed in a tubular shape.In the case where the tobacco fillers 211 each have a substantiallyrectangular parallelepiped shape having a longitudinal direction, thetobacco fillers 211 may be injected in such a manner that theirlongitudinal directions are random directions in the wrapping paper 213or may be injected so as to be aligned in the axial direction of atobacco-containing segment or in a direction perpendicular to the axialdirection. In addition, in the case of using a tobacco sheet, thetobacco sheet may be cut into pieces each having a width of 0.5-2.0 mm,inclusive (e.g., each having a length of 5-40 mm, inclusive) andinjected in a space around the plate-shaped susceptor in a randomorientation, or the tobacco sheet may be cut into pieces each having awidth of 1.0-3.0 mm, inclusive (e.g., each having a length of 5-40 mm,inclusive) and aligned parallel to the airflow direction. Alternatively,the tobacco sheet that has been crimped (longitudinally striped) may beinserted in a gathered manner. As a result of the flavor-generatingsegment 21 being heated, a tobacco component, the aerosol-sourcematerial, and water that are contained in the fillers 211 are vaporized,and then, these are caused to flow to the mouthpiece segment 22 byinhalation.

Aspects of the fillers 211 and aspects in which the fillers 211 areinjected into the flavor-generating segment 21 will now be describedmore specifically. The conditions in the following aspects can becombined to the greatest extent possible.

-   -   (a) After a leaf, a vein, a stem, a root, a flower, or the like        of a tobacco plant of a species selected from Nicotiana tabacum        species, such as a yellow species, a Burley species, an orient        species, and a native species, Nicotiana rustica species, and so        forth has been collected, the collected material is dried such        that the amount of moisture contained therein is about 10% by        weight to about 15% by weight and is prepared as a base        material. The various species of tobacco plants and different        collected portions of tobacco plants can be blended in        accordance with a desired flavor. The base material is cut into        shreds each having a width of about 0.5 mm to about 1.5 mm, and        the shreds can be injected into a wrapping paper having a        cylindrical shape in a random orientation or so as to be        substantially oriented in the vertical direction.    -   (b) After a leaf, a vein, a stem, a root, a flower, or the like        of a tobacco plant of a species selected from Nicotiana tabacum        species, such as a yellow species, a Burley species, an orient        species, and a native species, Nicotiana rustica species, and so        forth has been collected, the collected material is grinded,        mixed with water and a binder, and homogenized. Then, it is        formed into a sheet shape or a granular shape or extruded into a        rod shape so as to be prepared as a base material. The various        species of tobacco plants and different collected portions of        tobacco plants can be blended in accordance with a desired        flavor. In the case of using the base material having a granular        shape (having an average particle diameter of 0.2 mm to 2.0 mm),        the base material can be injected into a cylindrical wrapping        paper. In the case of using the base material having a sheet        shape (cut into shreds each having a thickness of 50 μm to 300        μm, a width of 0.5 mm to 1.5 mm, and a length of 5 mm to 40 mm),        the base material can be injected into a cylindrical wrapping        paper in a random orientation, can be injected into a        cylindrical wrapping paper so as to be substantially oriented in        the vertical direction, or can be gathered and injected into a        cylindrical wrapping paper while its sheet shape is maintained        (a plurality of channels through which air flows may be formed        in the longitudinal direction).    -   (c) A leaf, a vein, a stem, a root, a fruit, a flower, or the        like of a plant of a species selected from herbal plants such as        mint, basil, thyme, coriander, rosemary, parsley, fennel,        lemongrass, and cinnamon, tea leaves, coffee beans and so forth        is collected, dried such that the amount of moisture contained        therein is about 10% by weight to about 15% by weight, and        prepared as a base material. Various herb plants, tea leaves and        coffee beans may be blended in accordance with a desired flavor.        The base material is cut into shreds each having a width of        about 0.5 mm to about 1.5 mm, and the shreds can be injected        into a wrapping paper having a cylindrical shape in a random        orientation or so as to be substantially oriented in the        vertical direction.    -   (d) A porous member (a member having an open pore structure)        that is mainly made of fibers of a non-tobacco plant, such as        paper (having a thickness of 50 μm to 200 μm and a basis weight        of 30 g/m² to 200 g/m²) that is a piece of wet laid non-woven        fabrics containing wood pulp as a main raw material or a        non-woven fabric sheet (having a thickness of 200 μm to 2,000 μm        and a basis weight of 30 g/m² to 200 g/m²) that is a piece of        dry laid non-woven fabrics containing natural fibers or        synthetic fibers as a main raw material, is prepared as a base        material. In the case of such a base material, an additive such        as a flavor source can be externally added to pore portions, and        the additive is stably held at normal temperature due to the        pore structure. The base material is cut into shreds each having        a width of about 0.5 mm to about 1.5 mm, and the shreds can be        injected into a cylindrical wrapping paper in a random        orientation or can be injected into a cylindrical wrapping paper        so as to be substantially oriented in the vertical direction.        Alternatively, it can be gathered and injected into a        cylindrical wrapping paper while its sheet shape is maintained        (a plurality of channels through which air flows may be formed        in the longitudinal direction).    -   (e) A member containing a polymer as a main raw material is        prepared as a base material. The member containing a polymer as        a main raw material is not particularly limited, and for        example, a member obtained by mixing a polysaccharide thickener,        such as gellan gum, carrageenan, pectin, or agar, water, and an        additive together, homogenizing the mixture, and then        evaporating the moisture contained in the mixture can be used.        Depending on the type of the polysaccharide thickener, the        presence of cations such as calcium ions may sometimes        strengthen the intermolecular crosslinked structure, resulting        in a firmer gel, and thus, a calcium salt or a potassium salt        may be added as necessary. The method of evaporating the        moisture is not particularly limited, and for example, a method        such as heating at normal temperature, heating under reduced        pressure, or freeze-drying can be used. In addition, the member        may have an open pore structure or may have a closed pore        structure. For example, as an example of the member having an        open pore structure, a gel with a low-density open pore        structure (also referred to as an organic aerogel) can be        obtained by homogenizing a gelling agent, a gelling accelerator,        and water so as to form a wet gel having a crosslinked structure        between organic molecules and then volatilizing the moisture        while leaving the crosslinked structure by supercritical carbon        dioxide treatment or freeze-drying treatment. In this case, a        flavor source such as a flavor, a tobacco extract, or ground        tobacco may be homogenized together with another raw material,        or the flavor source may be externally added to pores in the        pore structure after the organic aerosol has been generated. For        example, as an example of the member having a closed pore        structure, a gel in which droplets or solid masses of a flavor        source are dispersed in a polysaccharide can be obtained by        homogenizing the polysaccharide, water and the flavor source,        such as a flavor or a tobacco extract, and then drying and        heating them at normal pressure. Although this gel has a pore        structure, the pores in the pore structure are closed with        respect to the outside at room temperature. In an aspect in        which the flavor source is added into the pores, the pores are        opened by heating or adding moisture thereto, and the flavor        source in the pores is released. The base material can be        processed into a granular shape (having an average particle        diameter of 0.2 mm to 2.0 mm) and injected into a wrapping paper        having a cylindrical shape. Alternatively, the base material        that has been processed into a sheet shape (having a thickness        of 50 μm to 300 μm) can be cut into shreds each having a width        of about 0.5 mm to about 1.5 mm and then can be injected into a        cylindrical wrapping paper in a random orientation, can be        injected into a cylindrical wrapping paper so as to be        substantially oriented in the vertical direction, or can be        gathered and injected into a cylindrical wrapping paper while        its sheet shape is maintained (a plurality of channels through        which air flows may be formed in the longitudinal direction).

Although the length of the circumference of the flavor-generatingsegment 21 is not particularly limited, the length is preferably 16 mmto 25 mm, more preferably 20 mm to 24 mm, and further preferably 21 mmto 23 mm.

The length of the flavor-generating segment 21 in the airflow directionis not particularly limited and is normally, for example, 7 mm orgreater, preferably 10 mm or greater, and more preferably 12 mm orgreater. In addition, the length of the flavor-generating segment 21 inthe airflow direction is normally 60 mm or less, preferably 30 mm orless, and more preferably 20 mm or less.

The filling ratio of the fillers 211 to the total amount of theflavor-generating segment 21 is normally 0.2-0.7 mg/mm³, inclusive,based on the inner void volume of the flavor-generating segment 21.

The airflow resistance of the flavor-generating segment 21 is, forexample, 5-60 mmH₂O, inclusive, preferably 10-40 mmH₂O, inclusive, andmore preferably 15-35 mmH₂O, inclusive. In addition, regarding thefilling density of the fillers 211 in the flavor-generating segment 21,the filling ratio (the filling density) of the fillers 211 to the totalamount of the flavor-generating segment 21 may normally be 0.2-0.7mg/mm³, inclusive, and may be 0.2-0.6 mg/mm³, inclusive, based on theinner void volume of the flavor-generating segment 21. Within such arange, for example, heat generated by the plate-shaped susceptor can besufficiently transmitted to the fillers 211, and unnecessary filtrationof a flavor component can be suppressed at the time of inhalation, sothat favorable release can be ensured.

The fillers 211 holds the plate-shaped susceptor 212 inside theflavor-generating segment 21. The material of the plate-shaped susceptor212 is, for example, a metal, and a specific example thereof is any oneof aluminum, iron, an iron alloy, a stainless steel, nickel, and anickel alloy, or a combination of two or more of these. For example,carbon can also be used other than a metal. However, a metal ispreferable from the standpoint of easily forming continuous ridge-likeraised portions, which will be described later, and from the standpointof enabling favorable electromagnetic induction heating. Theplate-shaped susceptor 212 is, for example, a plate-shaped memberextending in the airflow direction. The plate-shaped susceptor 212 isheated by an eddy current that is generated in the plate-shapedsusceptor 212 by a fluctuating electromagnetic field generated by theinductor 32. The plate-shaped susceptor 212 that has been heated heatsthe fillers 211 located therearound so as to form an aerosol. Note thatthe plate-shaped susceptor 212 may have a through hole extendingtherethrough in its thickness direction. In addition, the plate-shapedsusceptor 212 may include a projecting portion projecting in thethickness direction or the airflow direction and a recessed portionrecessed in the thickness direction or the airflow direction.Furthermore, two or more plate-shaped susceptors 212 may be arranged inparallel or in series in the airflow direction. In addition to theplate-shaped susceptor 212, or instead of the plate-shaped susceptor212, the flavor-generating segment 21 may include a susceptor having adifferent shape such as, for example, a thread shape or a granularshape. By increasing the surface area of the plate-shaped susceptor 212that is in contact with the fillers 211, the efficiency of aerosolgeneration can be improved can be improved.

Note that the fillers 211 may include an aerosol-source material that isin a liquid state at 25° C. or an aerosol-source material that is in agel state at 25° C.

Examples of the aerosol-source material that is in a liquid state at 25°C. include one or more selected from the group consisting of glycerin,propylene glycol, triacetin, 1,3-butanediol, and the like. The contentpercentage of the aerosol-source material in a liquid state with respectto the weight of the fillers 211 is normally 5-50% by weight, inclusive,preferably 10-35% by weight, inclusive, and more preferably 15-30% byweight, inclusive.

In the case where the liquid aerosol-source material is included in thefillers 211, the liquid may sometimes migrate to a wrapping paper or amouthpiece member during manufacture or transport. By containing anaerosol-source material that is in a gel state at 25° C. into thefillers 211, migration of the aerosol-source material can be preventedfrom occurring during the above-mentioned manufacture or transport.

An aerosol-source material that is in a gel state at 25° C. can beformed by, for example, mixing a required amount of a polysaccharide(gellan gum, agar, sodium alginate, carrageenan, starch, modifiedstarch, cellulose, modified cellulose, pectin) or a protein (collagen,gelatin) into an aerosol-source material (glycerin, propylene glycol,triacetin, 1,3-butanediol), which is the above-mentioned aerosol-sourcematerial that is in a liquid state at 25° C. For example, anaerosol-source material that is in a gel state at 25° C. can be obtainedby mixing 0.2% by weight to 1.0% by weight of native gellan gum intoglycerin containing 5% by weight to 30% by weight of water. Also whenanother thickener is used, the amount of the thickener may be determineddepending on the required gelling property. The content percentage ofthe aerosol-source material in a gel state with respect to the weight ofthe fillers 211 is normally 5-50% by weight, inclusive, preferably10-35% by weight, inclusive, and more preferably 15-30% by weight,inclusive.

Components that can be included in the fillers 211 will be described indetail below. However, the manner in which the components are includedin the fillers 211 is not particularly limited. For example, thecomponents may be added during manufacture of the fillers 211 or may beadded after manufacture of the fillers 211, and more specifically, thecomponents may be added to the base materials in the specific aspects(a) to (e) which have been described above.

The fillers 211 may include a flavor material. The type of the flavormaterial is not particularly limited, and examples of the flavormaterial include a flavoring agent and a taste agent from the standpointof imparting good smoke taste. In addition, a coloring agent, ahumectant, and a preservative may be optionally included as othercomponents. The properties and states of the flavor material and theother components are not limited, and for example, they may be liquid orsolid. One of them may be used alone, or any two or more of them may beused in combination in any ratio.

Regarding a preferable flavor of the flavoring agent, a single type offlavor may be used alone, or any two or more types of flavors may beused in combination in any ratio. A component that provides coolsensation or warm sensation may be used. Examples of the type of theflavoring agent include a sugar and a sugar-based flavor, licorice(glycyrrhiza), cocoa, chocolate, a fruit juice and a fruit, a spice, aWestern liquor, a herb, vanilla, and a flower-based flavor. In addition,as the flavoring agent, for example, the types of flavoring agentsdescribed in “Collection of Well-known Prior Arts (Flavoring Agent)”(published by Japan Patent Office, Mar. 14, 2007), “Latest Handbook ofFlavoring Agents (popular edition)” (Feb. 25, 2012, edited by SoichiArai et al., Asakura Publishing Co., Ltd.), and “Tobacco Flavoring forSmoking Products” (June, 1972, R. J. REYNOLDS TOBACCO COMPANY) can beused.

More specific examples of the flavoring agent include isothiocyanates,indoles and derivatives thereof, ethers, esters, ketones, fatty acids,aliphatic higher alcohols, aliphatic higher aldehydes, aliphatic higherhydrocarbons, thioethers, thiols, terpene hydrocarbons, phenol ethers,phenols, furfural and derivatives thereof, aromatic alcohols, aromaticaldehydes, and lactones.

Further specific examples of the flavoring agent include acetoanisole,acetophenone, acetylpyrazine, 2-acetylthiazole, an alfalfa extract, amylalcohol, amyl butyrate, trans-anethole, star anise oil, apple juice,Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid,benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzylpropionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid,caramel, cardamom oil, carob absolute, β-carotene, carrot juice,L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seedoil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol,cinnamyl cinnamate, citronella oil, DL-citronellol, a clary sageextract, coffee, cognac oil, coriander oil, cumin aldehyde, davana oil,δ-decalactone, γ-decalactone, decanoic acid, dill herb oil,3,4-dimethyl-1,2-cyclopentanedione,4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoicacid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine,ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate,ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethylmaltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethylphenylacetate, ethyl propionate, ethyl stearate, ethyl valerate,ethylvanillin, ethylvanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone,2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, genetabsolute, gentian root infusion, geraniol, geranyl acetate, grape juice,guaiacol, a guava extract, γ-heptalactone, γ-hexalactone, hexanoic acid,cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, hexyl phenylacetate,honey, 4-hydroxy-3-pentenoic acid lactone,4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one,4-(p-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelleabsolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamylphenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmineabsolute, kola nut tincture, labdanum oil, lemon terpeneless oil, alicorice extract, linalool, linalyl acetate, lovage root oil, maplesyrup, menthol, menthone, L-menthyl acetate, p-methoxy benzaldehyde,methyl-2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate,methyl salicylate, 4′-methylacetophenone, methylcyclopentenolone,3-methylvaleric acid, mimosa absolute, syrup, myristic acid, nerol,nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoicacid, orange flower oil, orange oil, orris root oil, palmitic acid,ω-pentadecalactone, peppermint oil, petitgrain Paraguay oil, phenethylalcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, a plumextract, propenyl guaethol, propyl acetate, 3-propylidenephthalide,prune juice, pyruvic acid, a raisin extract, rose oil, rum, sage oil,sandalwood oil, spearmint oil, styrax absolute, marigold oil, teadistillate, α-terpineol, terpinyl acetate,5,6,7,8-tetrahydroquinoxaline,1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane,2,3,5,6-tetramethylpyrazine, thyme oil, a tomato extract, 2-tridecanone,triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-butene-4-one,2,6,6-trimethyl-2-cyclohexene-1,4-dione,4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-butene-4-one,2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, a vanillaextract, vanillin, veratraldehyde, violet leaf absolute, citral,mandarin oil, 4-(acetoxymethyl) toluene, 2-methyl-1-butanol, ethyl10-undecenoate, isoamyl hexanoate, 1-phenylethylacetic acid, lauricacid, 8-mercaptomenthone, sinensal, hexyl butyrate, a plant powder (herbpowder, flour powder, spice powder, tea powder: cocoa powder, carobpowder, coriander powder, licorice powder, orange peel powder, rose hippowder, chamomile flower powder, lemon verbena powder, peppermintpowder, leaf powder, spearmint powder, black tea powder, etc.), camphor,isopulegol, cineol, mint oil, eucalyptus oil, 2-1-menthoxy ethanol(COOLACT (registered trademark) 5), 3-1-menthoxy propane-1,2-diol(COOLACT (registered trademark) 10), 1-menthyl-3-hydroxybutyrate(COOLACT (registered trademark) 20), p-menthane-3,8-diol (COOLACT(registered trademark) 38D),N-(2-hydroxy-2-phenylethyl)-2-isopropyl-5,5-dimethylcyclohexane-1-carboxamide(COOLACT (registered trademark) 370),N-(4-(cyanomethyl)phenyl)-2-isopropyl-5,5-dimethylcyclohexanecarboxamide(COOLACT (registered trademark) 400),N-(3-hydroxy-4-methoxyphenyl)-2-isopropyl-5,5-dimethylcyclohexanecarboxamide,N-ethyl-p-menthane-3-carboamide (WS-3),ethyl-2-(p-menthan-3-carboxamide) acetate (WS-5),N-(4-methoxyphenyl)-p-menthane carboxamide (WS-12),2-isopropyl-N,2,3-trimethylbutyramide (WS-23),3-1-menthoxy-2-methylpropane-1,2-diol, 2-1-menthoxy ethane-1-ol,3-1-menthoxy propane-1-ol, 4-1-menthoxy butane-1-ol, menthyl lactate(FEMA3748), menthone glycerin acetal (Frescolat MGA, FEMA3807,FEMA3808), 2-(2-1-menthyloxyethyl) ethanol, menthyl glyoxylate, menthyl2-pyrrolidone-5-carboxylate, menthyl succinate (FEMA3810),N-(2-(pyridin-2-yl)-ethyl)-3-p-menthane carboxamide (FEMA4549),N-(ethoxycarbonylmethyl)-p-menthane-3-carboxamide,N-(4-cyanomethylphenyl)-p-menthane carboxamide, andN-(4-aminocarbonylphenyl)-p-menthane.

Examples of the taste agent include components having sweetness,sourness, saltiness, umami, bitterness, acerbity, kokumi, and so forth.

Examples of the component having sweetness include a saccharide, a sugaralcohol, and a sweetener. Examples of the saccharide includemonosaccharides, disaccharides, oligosaccharides, and polysaccharides.Examples of the sweetener include natural sweeteners and syntheticsweeteners.

Examples of the component having sourness include an organic acid (and asodium salt thereof). Examples of the organic acid include acetic acid,adipic acid, citric acid, lactic acid, malic acid, succinic acid, andtartaric acid.

Examples of the component having bitterness include caffeine (extract),naringin, and a wormwood extract.

Examples of the component having saltiness include sodium chloride,potassium chloride, sodium citrate, potassium citrate, sodium acetate,and potassium acetate.

Examples of the component having umami include sodium glutamate, sodiuminosinate, and sodium guanylate.

Examples of the component having acerbity include tannin and shibuol.

Examples of the coloring agent include natural pigment and a syntheticpigment. Examples of the natural pigment include caramel, turmeric, redyeast rice, gardenia, safflower, carotene, marigold, and annatto.Examples of the synthetic pigment include a tar dye and titanium oxide.

Examples of the humectant include lipids such as a wax, cera, glycerin,a medium-chain fatty acid triglyceride, and fatty acids (includingshort-chain, medium-chain, and long-chain fatty acids).

Although the total flavor material content in the fillers 211 is notparticularly limited, for example, the total flavor material content isnormally 10 ppm or greater, preferably 10,000 ppm or greater, and morepreferably 50,000 ppm or greater. In addition, the total flavor materialcontent is normally 250,000 ppm or less, preferably 200,000 ppm, morepreferably 150,000 ppm or less, and still more preferably 100,000 ppm orless from the standpoint of imparting good smoke taste.

The fillers 211 may include a flavor modifier, and examples of theflavor modifier include an acid and an alkali.

The type of acid that can be used as the flavor modifier is notparticularly limited as long as it is edible, and an organic acid is anexample. In particular, an acid is preferable because it is liquid atnormal temperature (15° C. to 25° C.) and can be easily added in thecase where the flavor adjusting agent is mixed with a solvent andsprayed. Specific examples of the acid include stearic acid, isostearicacid, linoleic acid, oleic acid, palmitic acid, myristic acid,dodecanoic acid, capric acid, benzoic acid, isobutyric acid, propionicacid, adipic acid, acetic acid, vanillylmandelic acid, maleic acid,glutaric acid, fumaric acid, succinic acid, lactic acid, glycolic acid,and glutamic acid. One of these acids may be used alone, or any two ormore of them may be used in combination in any ratio. Among these acids,for example, isostearic acid, linoleic acid, oleic acid, isobutyricacid, propionic acid, acetic acid, lactic acid, or the like ispreferable as an acid that is liquid at 15° C. to 25° C., and lacticacid is more preferable because it is inexpensive, has a minimal odor,and has little effect on the flavoring agent.

The type of the alkali that can be used as the flavor modifier is notparticularly limited as long as it is edible, and may be, for example,an alkali metal carbonate, an alkali metal citric acid salt, sodiumcarbonate, sodium hydrogen carbonate, potassium carbonate, or a mixtureof these or may be an aqueous solution obtained by dissolving these insuitable water.

The fillers 211 may include a granular susceptor, which will bedescribed later. The amount of the granular susceptor included in thefillers 211 may be, for example, 1-20% by weight, inclusive, preferably1-15% by weight, inclusive, and more preferably 1-10% by weight,inclusive, from the standpoint of being able to efficiently generate anaerosol.

In the case where base materials such as those mentioned in (a) to (e),which have been described above, are used as the fillers 211, a methodof including the aerosol-source material, the flavor material, theflavor modifier, the granular susceptor, or another component in thebase material is not particularly limited, and for example, thefollowing methods can be employed. The aerosol-source material, theflavor material, the flavor modifier, the granular susceptor, or anothercomponent will hereinafter be referred to as an additive component.

-   -   (1) After the base material has been produced, the additive        component is externally added to the base material as is.    -   (2) After the base material has been produced, a liquid obtained        by dissolving or dispersing the additive component in a solvent        is externally added to the base material.    -   (3) After the base material has been produced, the additive        component is dissolved or dispersed in a solvent, and in        addition, a thickener is added to the solvent so as to adjust        the viscosity (from a high-viscosity liquid state to a gel        state). Then, it is externally added to the base material. By        adding an additive in such a manner, exudation of the additive        when a large amount of the additive is added can be suppressed.    -   (4) After the base material has been produced, a carrier        carrying the additive component is externally added to the base        material.    -   (5) The additive component is externally added to the base        material as is during the manufacturing process of the base        material.    -   (6) A liquid obtained by dissolving or dispersing the additive        component in a solvent is externally added to the base material        during the manufacturing process of the base material.    -   (7) A carrier carrying the additive component is externally        added to the base material during the manufacturing process of        the base material.

The method of including an additive in the base material during themanufacturing process of the base material as described in (5) to (7) isparticularly easy to be employed in the above specific aspects (b), (d),and (e) of the fillers 211.

Examples of the above-mentioned carrier include dextrin, cyclodextrin,calcium carbonate, activated carbon, silica gel, and ion exchange resin.In addition, it is preferable that the average particle diameter of thecarrier be about 50 μm to about 500 μm from the standpoint ofhandleability.

The thickness of the plate-shaped susceptor 212 is, for example,30-1,000 μm, inclusive, preferably 50-500 μm, inclusive, and morepreferably 50-200 μm, inclusive. The length of the plate-shapedsusceptor 212 in the airflow direction is, for example, 6-60 mm,inclusive, and it is preferable that the length of the plate-shapedsusceptor 212 in the airflow direction be equal to or larger than avalue obtained by subtracting 4 mm from the length of theflavor-generating segment 21 in the airflow direction and equal to orsmaller than the length of flavor-generating segment 21 in the airflowdirection. The length of the plate-shaped susceptor 212 in the widthdirection, which is perpendicular to the airflow direction, is, forexample, 1-7 mm, inclusive, preferably 2-6 mm, inclusive, and morepreferably 3-5 mm, inclusive.

By setting the above-mentioned ranges, for example, the entireflavor-generating segment can be efficiently heated.

The plate-shaped susceptor is required to have such strength that theplate-shaped susceptor will not break when it is inserted into theflavor-generating segment at high speed. When the plate-shaped susceptoris subjected to a tensile test with its two ends in the airflowdirection held, it is preferable that the breaking strength thereof be 2N or greater. The tensile test can be conducted at a tension rate of 50mm/min by using, for example, a rheometer manufactured by Sun ScientificCO., LTD., model number CR-3000EX-L. Although it depends on the materialor the shape of the plate-shaped susceptor, when a tensile test isconducted, the plate-shaped susceptor first stretches, and the tensilestress measured by a load cell of the rheometer increases. If theplate-shaped susceptor is kept pulled, it will become cut. Theabove-mentioned breaking strength refers to the maximum value of thetensile stress recorded by the rheometer. After the tensile stress hasreached its maximum just before breakage, there will be no tensilestress any more.

As the wrapping paper 213, paper, a polymer film, or the like can beused, and the wrapping paper 213 may be formed of a single sheet ofpaper, a single polymer film, or the like or may be formed of aplurality of these. In addition, the outer side or the inner side of thewrapping paper 213 may be coated. For example, it may be selected from alaminated sheet in which paper and a polymer film are laminatedtogether, and paper having a water-resistant coating provided on eitheror both of the inner side and the outer side thereof. The airpermeability of the wrapping paper 213 may be low. For example, the airpermeability may be less than 15 Coresta. It is preferable that the airpermeability be less than 10 Coresta. With such a configuration,generation of stains due to volatilization or leakage of a volatileflavor source or the aerosol-source material from the flavor-generatingsegment before use and during use can be prevented.

If a metal is present at a portion of the wrapping paper 213 locatedbetween the inductor 32 and the plate-shaped susceptor, a fluctuatingelectromagnetic field generated by the inductor 32 will be absorbedduring use, so that the fluctuating electromagnetic field will behindered from being transmitted to the plate-shaped susceptor asdesigned. Thus, it is preferable that the wrapping paper 213 locatedbetween the inductor 32 and the plate-shaped susceptor do not containany metal.

<Cooling Segment>

The mouthpiece segment may include the cooling segment, and the coolingsegment 23 may be formed of a cylindrical member as an example. Thecooling segment is located further downstream than a flavor-generatingsegment 21. The vapor of the aerosol-source material or the flavorsource that has been heated and vaporized is introduced into the coolingsegment, cooled, and liquefied (aerosolized). It is preferable that thecooling segment reduce a temperature without significantly removing thevapor of the aerosol-source material or the flavor source generated inthe flavor-generating segment 21. For example, at the time ofinhalation, the difference between the segment internal temperature atan inlet of the cooling segment and the segment internal temperature atan outlet of the cooling segment may sometimes become equal to orgreater than 20° C.

As an aspect of the cooling segment, the cooling segment may be a papertube obtained by processing a sheet of paper or a plurality of sheets ofpaper bonded together into a cylindrical shape. Further, in order toenhance the cooling effect by bringing external air at room temperatureinto contact with high-temperature vapor, it is preferable that a holefor introducing the external air be formed in the circumference of thepaper tube. By coating the inner surface of the paper tube with apolymer coating such as polyvinyl alcohol or a polysaccharide coatingsuch as pectin, the cooling effect can be also enhanced by utilizingheat of solution associated with the heat absorption by the coating or aphase change of the coating. The airflow resistance of the cylindricalcooling segment is zero mmH₂O.

As another aspect of the cooling segment, it is also preferable todispose a cooling sheet member inside a paper tube formed in acylindrical shape. In this case, by providing one or a plurality of airflow channels in the airflow direction, a low level of componentfiltration can be achieved while cooling is performed by the coolingsheet member. It is desirable that the airflow resistance of the coolingsegment including the cooling sheet disposed therein be 0 mmH₂O to 30mmH₂O.

The total surface area of the cooling sheet member may be, for example,300-1,000 mm²/mm. This surface area is a surface area per length (mm) ofthe cooling sheet member in the airflow direction. It is preferable thatthe total surface area of the cooling sheet member be 400 mm²/mm orgreater, and more preferably 450 mm²/mm or greater, and on the otherhand, it is preferable that the total surface area of the cooling sheetmember be 600 mm²/mm or less, and more preferably 550 mm²/mm or less.

It is desirable that the internal structure of the cooling segment 23has a large surface area. Thus, in a preferred embodiment, the coolingsheet member may be formed of a thin sheet material that is wrinkled inorder to form channels in the airflow direction and then pleated,gathered, and folded. The larger the number of folds or pleats in agiven volume of the element, the larger the total surface area of thecooling sheet member.

In some embodiments, the thickness of a component material of thecooling sheet member may be, for example, 5-500 μm, inclusive, and maybe, for example, 10-250 μm, inclusive.

The cooling sheet member can be made of a material having a specificsurface area of 10-100 mm²/mg, inclusive. In one embodiment, thespecific surface area of the component material may be about 35 mm²/mg.

The specific surface area can be determined by taking into considerationa material of the cooling sheet member with a known width and a knownthickness. For example, the material of the cooling sheet member can bepolylactic acid having an average thickness of 50 μm, varying within ±2μm. In the case where the material of the cooling sheet member has aknown width of, for example, 200-250 mm, inclusive, as mentioned above,the specific surface area and the density can be calculated.

In addition, it is desirable to use paper as the material of the coolingsheet member from the standpoint of reducing the environmental load.Paper that is used as the material of the cooling sheet preferably has abasis weight of 30 g/m² to 100 g/m² and a thickness of 20 μm to 100 μm.From the standpoint of reducing the removal amount of a flavor sourcecomponent and an aerosol-source material component in the coolingsegment, it is desirable that the air permeability of paper used as thematerial of the cooling sheet be low, and it is preferable that the airpermeability be equal to or less than 10 Coresta. By coating paper,which is used as the material of the cooling sheet, with a polymercoating such as polyvinyl alcohol or a polysaccharide coating such aspectin, the cooling effect can be also enhanced by utilizing heat ofsolution associated with the heat absorption by the coating or a phasechange of the coating.

The cylindrical member and the lining sheet 25 may have a perforation(ventilation filter (Vf)) 231 that is formed so as to extend throughthem. The outside air is introduced into the cooling segment 23 at thetime of inhalation due to the presence of the perforation 231.Accordingly, an aerosol vaporized component that is generated as aresult of heating the flavor-generating segment 21 comes into contactwith the outside air and is liquefied due to a decrease in itstemperature, so that an aerosol is formed. Although the diameter of theperforation 231 (the distance across the perforation 231 through thecenter) is not particularly limited, the diameter may be, for example,0.5-1.5 mm, inclusive. The number of the perforations 231 is notparticularly limited and may be one or two or more. For example, aplurality of perforations 231 may be formed in the circumference of thecooling segment 23.

The amount of the outside air that is introduced through the perforation231 is preferably 85% by volume or less, and more preferably 80% byvolume or less, with respect to the volume of the entire gas inhaled bya user. By setting the amount of the outside air to be 85% by volume orless, a reduction in flavor smoke taste as a result of being dilutedwith the outside air can be sufficiently suppressed. Note that this isalso referred to as a ventilation ratio.

It is preferable that the lower limit of the ventilation ratio be 55% byvolume or greater, and more preferably 60% by volume or greater from thestandpoint of cooling performance. The ventilation ratio can be adjustedby appropriately adjusting the hole diameter of the perforation 231 andthe number of the perforations 231.

The ventilation ratio is measured in conformity with an ISO standardmethod (ISO6565:2015) by using, for example, an NCQA (manufactured by JTtohsi Co., Ltd.). When the air is inhaled from the mouthpiece endsurface of the non-combustion-heating-type tobacco at a predeterminedair flow rate (17.5 cc/sec), the atmosphere is introduced into thenon-combustion heating tobacco from an end portion of thenon-combustion-heating-type tobacco, a side surface of aflavor-generating segment 21, and the perforation 231. The ventilationratio is the ratio of the air flow rate at which the air is introducedfrom the perforation 231 to the air flow rate (17.5 cc/sec) at which theair is inhaled from the mouthpiece end surface.

It is preferable that the cooling segment 23 provide a small resistanceto the air passing through the tobacco rod, and the airflow resistanceof the cooling segment 23 is, for example, 0-30 mmH₂O, inclusive,preferably 0-25 mmH₂O, inclusive, and more preferably 0-20 mmH₂O,inclusive.

Preferably, the cooling segment 23 does not substantially affect theinhalation resistance of an aerosol-generating article. In addition, itis preferable that the amount of pressure drop from the upstream end ofthe cooling segment 23 to the downstream end of the cooling segment 23is small.

In some embodiments, the generated aerosol may sometimes be reduced intemperature by 10° C. or more when it passes through the cooling segment23 and is inhaled by a user. In some embodiments, the generated aerosolmay sometimes be reduced in temperature by 15° C. or more in anotheraspect and 20° C. or more in yet another aspect when it passes throughthe cooling segment 23 and is inhaled by a user. The cooling segment 23can be formed by other means. For example, the cooling segment 23 may beformed of a bundle of longitudinally extending tubes. The coolingsegment 23 may be formed by extrusion, molding, lamination, injection orshredding of a suitable material.

The cooling segment 23 can be formed by, for example, wrapping apleated, gathered, or folded sheet material with cooling segmentwrapping paper. In some embodiments, the cooling segment 23 may includea wrinkled sheet material that is made of paper or a polymer film, whichis crimped in the airflow direction and then gathered into a rod shape,and that is shaped by a cooling segment wrapping sheet such as, forexample, cooling segment wrapping paper, which is filter paper. Withsuch a configuration, since a plurality of channels through which airflows are formed in the airflow direction of the cooling segment,airflow resistance is reduced. On the other hand, the heat of the air ora vaporized component is absorbed by the surrounding paper or polymerfilm when the air or the vaporized component passes through theplurality of channels, so that the air or the vaporized component iscooled.

The cooling sheet member, the cooling segment wrapping paper(particularly, the inner surface thereof), and the cylindrical member,which have been mentioned above, may include a flavor modifier. Anexample of the flavor modifier is an acid. Although the type of the acidis not particularly limited, an edible acid can be used, and forexample, an organic acid can be used. In particular, it is preferablethat the acid be liquid at 15° C. to 25° C., that is, at roomtemperature. This is because, if the acid is liquid at room temperature,the acid can be applied to wrapping paper without dissolving it in asolvent such as water. In addition, if the acid is held inside thewrapping paper while it is in a liquid state, the acid may be uniformlydistributed inside the wrapping paper, and the contact efficiencybetween the acid and a flavor component may be improved, so that theacid can efficiently act on the flavor component. Specific examples ofthe acid include stearic acid, isostearic acid, linoleic acid, oleicacid, palmitic acid, myristic acid, dodecanoic acid, capric acid,benzoic acid, isobutyric acid, propionic acid, adipic acid, acetic acid,vanillylmandelic acid, maleic acid, glutaric acid, fumaric acid,succinic acid, lactic acid, glycolic acid, and glutamic acid. Amongthese acids, examples of an acid that is a liquid at 15° C. to 25° C.are isostearic acid, linoleic acid, oleic acid, isobutyric acid,propionic acid, acetic acid, lactic acid, and the like. One of theseacids may be used alone, or any two or more of them may be used incombination in any ratio. Among these acids, lactic acid is preferablebecause it is inexpensive, has a minimal odor, and has little effect onthe flavoring agent. An example of the flavor modifier is an alkali.More specifically, it may be an alkali metal carbonate, an alkali metalcitric acid salt, sodium carbonate, sodium hydrogen carbonate, potassiumcarbonate, or a mixture of these or may be an aqueous solution obtainedby dissolving these in suitable water.

The cooling segment 23 can be formed into a rod shape whose length inthe airflow direction is, for example, 10-40 mm, inclusive, andpreferably 10-25 mm, inclusive. For example, the length of the coolingsegment in the airflow direction can be 18 mm.

In an embodiment of a portion of a cross section of the cooling segment23 in the circumferential direction, the cross-sectional shape of thecooling segment 23 in the airflow direction is a substantially circularshape, and its diameter can be 5.5-8.0 mm, inclusive. For example, thediameter of the cooling segment 23 can be about 7 mm.

In the case where the cooling segment has a perforation for introducingthe external air, when the air is inhaled from the suction end at 17.5cc/sec, the ratio of the amount of the air flowing into the coolingsegment through the perforation to the total amount of air flowing intothe cooling segment is normally 55% or greater, preferably 60% orgreater, and more preferably 65% or greater, and is normally 85% orless, preferably 80% or less, and more preferably 75% or less. Withinsuch a range, cooling of an aerosol and dilution of a flavor componentare performed in a balanced manner.

<Filter Segment>

The mouthpiece segment may include the filter segment 24. The filtersegment 24 is not particularly limited as long as it includes a filterelement and has a common function as a filter and can be formed by, forexample, processing a tow made of a synthetic fiber (also simplyreferred to as a “tow”) or a material such as paper into a cylindricalshape. Examples of a common function of a filter include adjustment ofthe amount of air to be mixed at the time of inhaling an aerosol or thelike, reduction of smoke taste, and reduction of nicotine and tar.However, it is not necessary for a filter to have all of thesefunctions. In addition, for an electrical heating type tobacco productthat generates a smaller amount of flavor components compared with apaper-wrapped tobacco product and in which the filling ratio of thetobacco fillers is likely to be low compared with a paper-wrappedtobacco product, a function of preventing falling of the tobacco fillerswhile suppressing a filtration function is one of the importantfunctions.

Although the length of the circumference of the filter segment 24 is notparticularly limited, the length is preferably 16 mm to 25 mm, morepreferably 20 mm to 24 mm, and further preferably 21 mm to 23 mm.Preferably, the length of the filter segment 24 in the airflow directioncan be selected from a range of 4-30 mm, inclusive, and more preferably,the length of the filter segment 24 in the airflow direction can beselected from a range of 7-20 mm, inclusive. Preferably, the airflowresistance can be selected from a range of 10-60 mmH₂O, inclusive, andmore preferably, the airflow resistance can be selected from a range of15-40 mmH₂O, inclusive. It is preferable that the length of the filtersegment 24 in the airflow direction be 5 mm to 9 mm, and more preferably6 mm to 8 mm. Although the cross section of the filter segment 24 is notparticularly limited, it can be, for example, a circular shape, an ovalshape, a polygonal shape, or the like. In addition, the filter segment24 may include an additive release container or flavoring agent beads,which will be described later, or a flavoring agent may be directlyadded.

Note that the shape and the dimensions of the filter element can besuitably adjusted such that the shape and the dimensions of the filtersegment 24 are within the above-mentioned ranges.

The configuration of the filter segment is not particularly limited andcan be a plane filter that includes a single filter segment or amulti-segment filter, such as a dual filter or a triple filter, thatincludes a plurality of filter elements. By employing a multi-segmentfilter, a different function can be imparted to each segment. Inaddition, the outer side of a filling layer may be wrapped with one or aplurality of sheets of filter segment wrapping paper.

Regarding the airflow resistance per segment of the filter segment 24,the airflow resistance can be appropriately changed in accordance withthe amount, the material, or the like of a filler with which the filtersegment 24 is filled. For example, when the filler is made of celluloseacetate fibers, the airflow resistance can be increased by increasingthe amount of the cellulose acetate fibers injected into the filtersegment 24. When the filler is made of cellulose acetate fibers, thefilling density of the cellulose acetate fibers can be 0.13 g/cm³ to0.18 g/cm³. Note that that the airflow resistance is a value measured byusing, for example, an airflow resistance measuring instrument (productname: SODIMAX, manufactured by SODIM).

The filter segment 24 can be manufactured by a commonly known method formanufacturing a filter segment. For example, when a synthetic fiber,such as cellulose acetate tow, is used as a material of the filterelement, the filter segment 24 can be manufactured by a method in whicha polymer solution containing a polymer and a solvent is spun intothread and in which the thread is crimped. For example, the methoddescribed in International Publication No. 2013/067511 can be used asthe above method.

In the manufacture of the filter segment 24, adjustment of airflowresistance and addition of additives (a commonly known absorbent, aflavoring agent (e.g., menthol)), granular active carbon, aflavoring-agent holding material, and so forth) to the filter elementcan be appropriately designed.

The filter element included in the filter segment 24 is not particularlylimited, and a commonly known aspect may be employed. For example, afilter element that is formed by processing cellulose acetate tow into acylindrical shape can be employed. Although the filament denier and thetotal denier of the cellulose acetate tow are not particularly limited,in the case of a mouthpiece member having a perimeter of 22 mm, it ispreferable that the filament denier be 5-15 g/9000 m, inclusive, and itis preferable that the total denier be 8,000-25,000 g/9000 m, inclusive.Examples of the cross-sectional shape of fibers of the cellulose acetatetow include a circular shape, an oval shape, a Y-shape, an I-shape, andan R-shape. In the case of a filter filled with cellulose acetate tow,in order to increase the hardness of the filter, a plasticizer, such astriacetin, may be added in an amount that is 5-10% by weight, inclusive,of the weight of the cellulose acetate tow. Instead of the celluloseacetate filter, a paper filter that is filled with sheet-shaped pulppaper may be used. As the filter element, paper or a piece of nonwovenfabric that is formed into a gathered shape may be used. In addition,the filter element may include the above-mentioned flavor modifier.

The filter element may include a crushable additive release container(e.g., a capsule) with a crushable shell made of gelatin or the like.The capsule (also called “additive release container” in this technicalfield) is not particularly limited, and a commonly known capsule may beemployed. For example, a crushable additive release container with acrushable shell made of gelatin or the like can be employed, and thediameter thereof can be 2-4 mm, inclusive. In this case, when thecapsule is broken before, while, or after a user uses a tobacco product,a liquid or a substance (usually a flavor agent) contained in thecapsule is released. Then, the liquid or substance is transferred totobacco smoke during the use of the tobacco product, and transferred tothe ambient environment after the use of the tobacco product.

From the standpoint of improving the strength and the structuralstiffness, the filter segment 24 may include wrapping paper (filter-plugwrapping paper) with which the above-mentioned filter element iswrapped. The wrapping paper is not particularly limited, and thewrapping paper may be bonded with an adhesive. The adhesive may includea hot-melt adhesive, and the hot melt adhesive may include polyvinylalcohol. In the case where the filter is formed of two or more segments,it is preferable to wrap each of the segments with first wrapping paperand then collectively wrap these segments with second wrapping paper.

The material of the wrapping paper is not particularly limited, and acommonly known material can be used. The wrapping paper may include, forexample, a filler such as calcium carbonate.

The thickness of the wrapping paper is not particularly limited and isnormally 20-140 μm, inclusive, preferably 30-130 μm, inclusive, and morepreferably 40-100 μm, inclusive.

The basis weight of the wrapping paper is not particularly limited andis normally 20-100 gsm, inclusive, preferably 22-95 gsm, inclusive, andmore preferably 23-90 gsm, inclusive.

Although the wrapping paper may or may not be coated, it is preferablethat the wrapping paper be coated with a desired material from thestandpoint of imparting a function other than strength or structuralstiffness. In addition, the above-mentioned flavor modifier may becontained in the wrapping paper, particularly the inner surface (theside that is in contact with the filter element) of the wrapping paper.

The filter segment 24 may further include a center hole segment havingone or a plurality of hollow portions. The center hole segment isusually positioned closer to the flavor-generating segment than thefilter element and is preferably positioned adjacent to the coolingsegment.

<First Modification of Plate-Shaped Susceptor>

The plate-shaped susceptor 212 may be a metal plate havingirregularities. FIG. 4 is a perspective view illustrating an example ofthe plate-shaped susceptor 212. Note that, in the descriptions ofmodifications, components that correspond to those in the aboveembodiment are denoted by the same reference signs, and the descriptionsthereof will be omitted. The plate-shaped susceptor 212 may includeridge-like raised portions 2121 formed of projections that arecontinuous with each other in the airflow direction and each of whichprojects toward at least one of the front side and the rear side, andthe susceptor 212 illustrated in FIG. 4 includes three continuousridge-like raised portions 2121.

FIG. 5 is a diagram schematically illustrating a method of manufacturingthe plate-shaped susceptor. As illustrated in the upper part of FIG. 5 ,a manufacturing apparatus 4 includes a plurality of rollers 41 andperforms rolling while feeding a metal plate 200, which is a material,in a predetermined direction. The manufacturing apparatus 4 furtherincludes a cutter 42 for cutting the metal plate 200 to form theplate-shaped susceptor 212. The middle part of FIG. 5 illustrates aschematic plan view of the metal plate at the corresponding position inthe upper part. The lower part of FIG. 5 illustrates a schematicsectional view of the metal plate at the corresponding position in theupper part. The metal plate 200 is pulled back and forth in the feedingdirection between, for example, the rollers 41, extends in the feedingdirection, and contracts in a width direction thereof that isperpendicular to the feeding direction. In this case, irregularitieshaving a wave-like cross section are formed on the metal plate 200. Themetal plate 200 is further rolled by the rollers 41, and theirregularities are crushed so as to form the ridge-like raised portions2121. According to such projections, the position at which the fillers211 hold the plate-shaped susceptor 212 in the flavor-generating segment21 is less likely to be shifted, and in the case where the plate-shapedsusceptor 212 includes a coating layer, which will be described later,the coating layer may easily be held by the plate-shaped susceptor 212.In addition, the continuous ridge-like raised portions 2121 of theplate-shaped susceptor 212 extend along the airflow direction, so thatthe vapor generated as a result of the tobacco component, theaerosol-source material, and so forth contained in the fillers 211 beingvaporized can be caused to smoothly flow along the airflow direction. Inother words, the spaces between the ridge-like raised portions 2121extending along the airflow direction can be appropriately used as flowpaths through which the vapor of the tobacco component and theaerosol-source material, which have been mentioned above, flow.

Note that the raised portions 2121 may be partially interrupted in theairflow direction or may be formed so as to be approximately parallel tothe airflow direction. The number of the raised portions 2121 may be oneor more and is not limited to three. The raised portions 2121 may beformed in a meandering shape instead of a linear shape when viewed inplan view.

<Second Modification of Plate-Shaped Susceptor>

FIG. 6 is a plan view depicting a modification of the plate-shapedsusceptor. In the case illustrated in FIG. 6 , the plate-shapedsusceptor 212 has a plurality of through holes 2122 extending betweenthe front side and the rear side thereof. The through holes 2122 can beformed by, for example, forming slits into the metal plate 200 by usingthe rollers 41 having blades and then rolling or pulling the metal plate200 by using the rollers 41 so as to enlarge the slits. Also with suchthrough holes, the position at which the fillers 211 hold theplate-shaped susceptor 212 in the flavor-generating segment 21 is lesslikely to be shifted, and the surface area of the plate-shaped susceptor212 that is in contact with the fillers 211 can be increased, so thatthe efficiency of aerosol generation can be improved.

<Third Modification of Plate-Shaped Susceptor>

FIG. 7 is a plan view depicting another modification of the plate-shapedsusceptor. In the present modification, the plate-shaped susceptor 212includes the ridge-like raised portions 2121 between the through holes2122. In other words, the raised portions 2121, which is formed by themanufacturing method illustrated in FIG. 5 , are formed on theplate-shaped susceptor 212 having the through holes 2122 illustrated inFIG. 6 . Although the raised portions 2121 are continuously formedbetween the through holes 2122 in the case illustrated in FIG. 7 , theraised portions 2121 may be partially interrupted in the longitudinaldirection or may be formed so as to be approximately parallel to thelongitudinal direction. In addition, the number of the raised portions2121 is not limited.

<Fourth Modification of Plate-Shaped Susceptor>

FIG. 8 is a diagram depicting an end surface of the plate-shapedsusceptor 212. An end portion of the plate-shaped susceptor 212 in theairflow direction may be provided with a protrusion that is formed so asto protrude in the thickness direction. FIG. 8 illustrates a firstcurved surface portion 2123 of the front surface of the end surface ofthe plate-shaped susceptor 212, a second curved surface portion 2124 ofthe front surface of the end surface, a third curved surface portion2125 located in the vicinity of the rear surface, and a protrusion 2126protruding toward the rear surface side. Also with such a protrusion,the position at which the fillers 211 hold the plate-shaped susceptor212 in the flavor-generating segment 21 is less likely to be shifted.Note that it is also preferable to form a protrusion on an end portionof the plate-shaped susceptor 212 in the width direction instead of onthe end portion of the plate-shaped susceptor 212 in the thicknessdirection in order to prevent the position at which the fillers 211 holdthe plate-shaped susceptor 212 from shifting. Thus, an end portion ofthe metal plate 200 in the airflow direction may be provided with aprotrusion that is formed so as to protrude in a direction, such as thethickness direction or the width direction, perpendicular to the airflowdirection. This protrusion is also effective in preventing displacementof a coating layer, which will be described later.

<Fifth Modification of Plate-Shaped Susceptor>

At least one of the front side and the rear side of the plate-shapedsusceptor 212 may be subjected to a texture treatment such as embossingor punching. The three-dimensional shape or the pattern of the surfaceobtained by a texture treatment is not particularly limited, and varioustypes of texture treatments can be performed for the purpose ofimproving the efficiency of aerosol generation of the plate-shapedsusceptor 212, preventing displacement of the plate-shaped susceptor 212in the flavor-generating segment 21, and so forth. By performing atexture treatment, a contact area with a coating layer, which will bedescribed later, is increased, and the amount of heat that istransferred from the plate-shaped susceptor to the coating layer isincreased.

<Modification of Flavor-Generating Segment>

FIG. 9 is a diagram depicting a modification of the flavor-generatingsegment. The flavor-generating segment 21 may include either or both ofa first coating layer 214 coating one of the front side and the rearside of the plate-shaped susceptor 212 and a second coating layer 215coating the other of the front side and the rear side of theplate-shaped susceptor 212. For example, the first coating layer 214 andthe second coating layer 215 are each a flavor source including anaerosol-based material. The flavor source may include, for example, atobacco powder, an aerosol-source material, a binder, and water. Inaddition, the fillers 211 may be a plant fiber or the like that does notcontain shredded tobacco, such as, for example, wood pulp. By laminatingsuch a coating layer on the periphery of the plate-shaped susceptor 212,the efficiency of generation of an aerosol and a flavor component can beimproved. In addition, in the case where the plate-shaped susceptor 212includes the above-mentioned ridge-like raised portions 2121, thecoating layers may be easily held by the plate-shaped susceptor 212.Note that, in the present specification, the term “coating layer” refersto both the “first coating layer” and the “second coating layer” unlessotherwise particularly stated.

The first coating layer and the second coating layer can each be formedby coating the plate-shaped susceptor with a mixture obtained byuniformly mixing pulverized tobacco plant (one or more selected from thegroup consisting of a mesophyll, a vein, a stem, a root, a flower, andso forth) (having an average particle size of 30-300 μm, inclusive), abinder (one or more selected from the group consisting of a modifiedcellulose, a modified starch, a protein, a polysaccharide thickener, andso forth), an aerosol-source material (one or more selected from thegroup consisting of glycerin, propylene glycol, triacetin,1,3-butanediol, and so forth), and water, and in addition, a flavoringagent, a flavor modifier, and plant fibers other than a tobacco plantmay be added. The flavor can be adjusted by blending a plurality ofdifferent species of tobacco plants as tobacco plants that can becontained. The coating layers may each contain 1-4% by weight,inclusive, of nicotine.

In addition, in the case where a tobacco plant is contained in the firstcoating layer and the second coating layer, by containing differentcomponents in the coating layers from each other, the range of flavorvariations can be increased. For example, by changing the particle sizesof pulverized tobacco plants, it is possible to contain a componentcapable of delivering a flavor component in an early stage of heatinginto one of the coating layers and to contain a component capable ofdelivering a flavor component in a later stage of heating into the othercoating layer.

As a specific example of a material included in the coating layers, theabove-described specific aspects (b), (c), or (e) of the fillers 211 canbe used, and it is preferable to use (b) from the standpoint ofexhibiting a flavor. In addition, additive components, such as anaerosol-source material, a flavor material, a flavor modifier, agranular susceptor, or other components, that can be added to theabove-mentioned fillers 211 may be added to a coating material in asimilar manner. Furthermore, regarding the method of adding theseadditive components to the base material, the method of adding additivecomponents to the base material in the above description of the fillers211 can be used.

The surface of any one of the first and second coating layers or thesurfaces of both of the first and second coating layers may be subjectedto a treatment for forming surface irregularities. The surface area isincreased by such a treatment, so that the flavor component delivery canbe improved.

The thicknesses of the first coating layer 214 and the second coatinglayer 215 are each independently, for example, 200-2,000 μm, inclusive,preferably 200-1,000 μm, inclusive, and more preferably 300-800 μm,inclusive. By setting such thickness ranges, aerosol generation andflavor source release are favorably maintained.

FIG. 10 is a diagram depicting a method of manufacturing theplate-shaped susceptor that has been coated. In the case illustrated inFIG. 10 , the manufacturing apparatus 4 includes the rollers 41, coatingunits 43, ovens 44, and the cutter 42. In the coating units 43, a slurrycontaining a tobacco powder and an aerosol-source material issequentially layered on the front side and the rear side of the metalplate 200 rolled by the rollers 41 and is dried in the ovens 44. Thecoated metal plate 200 is cut by the cutter 42, so that the plate-shapedsusceptor 212 on which the first coating layer 214 and the secondcoating layer 215 are laminated is obtained.

<First Modification of Coating Layer>

FIG. 11 is a diagram depicting a modification of the coating layers. Atleast one layer selected from the first coating layer 214 and the secondcoating layer 215 includes a granular susceptor 216. The material of thegranular susceptor 216 is, for example, a metal, and specific examplesthereof include aluminum, iron, an iron alloy, stainless steel, nickel,and a nickel alloy, and combinations of two or more of these. Forexample, carbon can also be used other than a metal. However, a metal ispreferable from the standpoint of enabling favorable electromagneticinduction heating. For example, the granular susceptor 216 is dispersedand mixed in the above-mentioned slurry, for example and disposed in thefirst coating layer 214 and the second coating layer 215. It ispreferable that the granular susceptor 216 be uniformly dispersed in thecoating layers. The granular susceptor 216 is also heated byelectromagnetic induction heating, and in the case where the firstcoating layer 214 and the second coating layer 215 include anaerosol-source material, these generate an aerosol. With such aconfiguration, an aerosol is more efficiently generated.

The particle diameter of the granular susceptor is normally 30-300 μm,inclusive, preferably 30-100 μm, inclusive, and more preferably 50-100μm, inclusive, from the standpoint of being able to efficiently generatean aerosol.

The content percentage of the granular susceptor in each of the coatinglayers is, independently, normally 1-20% by weight, inclusive,preferably 1-15% by weight, inclusive, and more preferably 1-10% byweight, inclusive, from the standpoint of being able to efficientlygenerate an aerosol.

In addition, the average of the distances from the surfaces of theparticles of the granular susceptor 216 to the surface of theplate-shaped susceptor 212 is normally 100-1,000 μm, inclusive, may be250-1,000 μm, inclusive, may be 100-500 μm, inclusive, and preferably150-400 μm, inclusive. Excessive contact between the plate-shapedsusceptor 212 and the granular susceptor can be prevented by uniformlydispersing the granular susceptor in the coating layers. With such anaverage distance, excessive heating can be prevented.

The granular susceptor 216 may be made of a metal different from that ofthe plate-shaped susceptor 212. For example, the material of thegranular susceptor 216 may be selected in such a manner that the Curietemperature thereof is lower than the Curie temperature of theplate-shaped susceptor 212. The control unit 34 may detect, on the basisof the magnitude of the current flowing through the inductor 32, achange in magnetic properties of the granular susceptor 216 due to thetemperature of the granular susceptor 216 reaching the Curie temperatureand control the temperature of the plate-shaped susceptor 212.

In the case where the granular susceptor 216 included in the coatinglayers is made of a type of metal different from the type of metalcontained in the plate-shaped susceptor 212, a coating layer that doesnot include the granular susceptor 216 may be applied as primary coatingbefore the coating layers are applied to the plate-shaped susceptor 212,and then the coating layers that include the granular susceptor may beapplied. This can prevent occurrence of galvanic corrosion due to directcontact between different types of metals. In addition, instead ofapplying the above-mentioned coating layer that does not include thegranular susceptor as primary coating, the plate-shaped susceptor 212may be coated with an insulating polymer, starches, or celluloses asprimary coating.

<Second Modification of Coating Layer>

FIG. 12 is a diagram depicting another modification of the coatinglayers. In the case illustrated in FIG. 12 , chamfered portions 2141 areprovided at end portions of the first coating layer 214 in the airflowdirection. Note that the chamfered portions 2141 may each be formed byflat chamfering in which a corner of a rectangular parallelepiped shapeis chamfered into a flat shape or may each be formed by round chamferingin which a corner is rounded. Instead of forming the chamfered portions2141 of the first coating layer 214, or in addition to formation of theform chamfered portions 2141 of the first coating layer 214, chamferedportions may be provided at end portions of the second coating layer 215in the airflow direction. By providing such chamfered portions, when theplate-shaped susceptor 212 provided with the coating layers is appliedis introduced into the flavor-generating segment 21 at high speed inhigh-speed manufacture of the flavor-generating segment 21, the cornerportions of the coating layers are introduced into the flavor-generatingsegment 21 without breaking or falling off. Since the coating layersinclude tobacco, it is suitable to prevent the coating layers fromfalling off in order to stably achieve consumer satisfaction.

<Third Modification of Coating Layer>

FIG. 13 is a diagram depicting another modification of the coatinglayers. In the case illustrated in FIG. 13 , the plate-shaped susceptor212 has the plurality of through holes 2122 extending between the frontside and the rear side thereof, and the interior of each of the throughholes 2122 may be at least partially filled with the first coating layer214, and the interior of each of the through holes may be entirelyfilled with the first coating layer 214. Note that the material withwhich the interior of each of the through holes is filled may be atleast one of the material of the first coating layer 214 and thematerial of the second coating layer 215. By increasing the surface areaof the plate-shaped susceptor 212 that is in contact with the coatinglayers, the efficiency of aerosol generation can be improved. Inaddition, since the through holes 2122 are each filled with a portion ofthe coating layer, shear displacement between the plate-shaped susceptor212 and the coating layer can be prevented.

<Fourth Modification of Coating Layer>

The first coating layer 214 and the second coating layer 215 may be madeof the same material or made of different materials from each other.

<Sixth Modification of Plate-Shaped Susceptor>

The plate-shaped susceptor 212 may have different surface roughnesses onits front and rear sides. Appropriate setting of surface roughness cansuppress separation of the first coating layer 214 and the secondcoating layer 215 from the susceptor 212. In addition, even in a casewhere the coating layers are not provided, displacement of theplate-shaped susceptor 212 in the flavor-generating segment 21 can besuppressed by setting the surface roughnesses. By setting the surfaceroughness on the front side and the surface roughness on the rear sideto be different from each other, the contact surface area of the firstcoating layer 214 with the plate-shaped susceptor and the contactsurface area of the second coating layer 215 with the plate-shapedsusceptor become different from each other. Consequently, there will bea difference in thermal conductivity, and thus, the timing ofvolatilization and generation of the flavor component and theaerosol-source material present in the first coating layer 214 and thetiming of volatilization and generation of the flavor component and theaerosol-source material present in the second coating layer 215 can beset to be different from each other.

<Modification of Non-Combustion-Heating-Type Tobacco>

FIG. 14 is a diagram depicting a modification of thenon-combustion-heating-type tobacco. FIG. 14 is a verticalcross-sectional view of the non-combustion-heating-type tobacco 2 cutalong the thickness direction of the plate-shaped susceptor 212. Thenon-combustion-heating-type tobacco 2 includes an end segment 26, theflavor-generating segment 21, a support segment 27, and the mouthpiecesegment 22. The end segment 26 is adjacent to the flavor-generatingsegment 21 and is provided on the side opposite to the side on which theinhalation port of the non-combustion-heating-type tobacco 2 is located.The support segment 27 is provided between the flavor-generating segment21 and the mouthpiece segment 22. Note that one of the end segment 26and the support segment 27 may not be provided.

<End Segment>

The end segment 26 is made of a common filter material, and has, forexample, one or more through holes along the airflow direction.Regarding the material of the end segment 26, relatively heat-resistantplant pulp fibers, cellulose fibers, or regenerated cellulose fibers maybe the main raw material. The end segment 26 may be formed bysolidifying continuous cellulose acetate fibers with a plasticizer(triacetin). By providing the end segment 26, the fillers 211 can besuppressed from dropping off from the flavor-generating segment 21, andthe plate-shaped susceptor 212 can be suppressed from popping out of theflavor-generating segment 21. Note that the end segment 26 may be madeof a porous solid filter material. The length of the end segment 26 inthe airflow direction is, for example, 5-10 mm, inclusive. The airflowresistance of the end segment 26 is, for example, 0-15 mmH₂O, inclusive.By setting the airflow resistance of the end segment to be low, theinfluence of the entire non-combustion heating tobacco on the airflowresistance can be reduced.

In the flavor-generating segment 21, the fillers 211 may be partiallyinterposed between the plate-shaped susceptor 212 and the end segment26. In other words, it is not necessary to bring the plate-shapedsusceptor 212 into contact with the end segment 26. With such aconfiguration, direct heating of the end segment 26 by the plate-shapedsusceptor 212 can be suppressed, and functional deterioration due todeterioration, deformation, or the like of the end segment 26 as aresult of being directly heated can be prevented.

FIG. 15 is an example of a longitudinal sectional view obtained bycutting the non-combustion-heating-type tobacco along the widthdirection of the plate-shaped susceptor. The plate-shaped susceptor 212includes chamfered portions 2126 that are formed so as to reduce thewidth of the end surface of the plate-shaped susceptor 212 facing theend segment 26. Also with such a configuration, the end segment 26 canbe suppressed from being heated by the plate-shaped susceptor 212.Consequently, functional deterioration due to deterioration,deformation, or the like of the end segment 26 as a result of beingdirectly heated can be prevented.

<Modification of End Segment>

The end segment 26 may have a configuration in which an end-segmentfiller of the end segment 26 is wrapped with end-segment wrapping paper.The end-segment filler of the end segment 26 may include a gatheredsheet made of paper or a polymer. The end-segment filler of the endsegment 26 may include a gather sheet made of a piece of nonwovenfabric. A piece of nonwoven fabric in a folded state will hereinafter bereferred to as a “gather sheet”. In these aspects, the gather sheet hasa through-hole (a channel) formed so as to extend therethrough in theairflow direction. In addition, a piece of nonwoven fabric having a lowdensity may be placed in the end segment while it is in a state of beingcompressed and folded. In this case, the piece of nonwoven fabric doesnot have a through hole (a channel) formed so as to extend therethroughin the airflow direction. In addition, the end-segment filler of the endsegment 26 may include a so-called flavor source. The flavor source maybe, for example, a flavoring agent, a tobacco extract or a tobaccopowder. The end-segment wrapping paper of the end segment 26 may be apaper-aluminum laminated sheet. Such end-segment wrapping paper can beheated by using an induced current or can be heated by heat transferredfrom the plate-shaped susceptor 212 of the flavor-generating segment 21,and in the case where the end segment 26 includes a flavor source, aflavor component can be volatilized by the heat of the end-segmentwrapping paper.

<Support Segment>

The support segment 27 is also made of a common filter material and has,for example, one or more through holes along the airflow direction. Thesupport segment 27 may also be formed by solidifying continuouscellulose acetate fibers with a plasticizer (triacetin). By providingthe support segment 27, the plate-shaped susceptor 212 can be suppressedfrom popping out of the flavor-generating segment 21. Note that thesupport segment 27 may also be made of a porous solid filter material. Asupport-segment filler of the support segment 27 may include a gatheredsheet made of paper or a polymer. The support-segment filler of thesupport segment 27 may include a gather sheet made of a piece ofnonwoven fabric. In these aspects, it has a through-hole (a channel)formed so as to extend therethrough in the airflow direction. Inaddition, the support-segment filler of the support segment 27 mayinclude a so-called flavor source. The flavor source may be, forexample, a flavoring agent, a tobacco extract or a tobacco powder. Asupport-segment wrapping paper of the support segment 27 may be apaper-aluminum laminated sheet. The length of the support segment 27 inthe airflow direction is, for example, 5 mm to 10 mm. The airflowresistance of the support segment 27 is 0 mmH₂O to 15 mmH₂O. By settingthe airflow resistance of the support segment to be low, the influenceof the entire non-combustion heating tobacco on the airflow resistancecan be reduced. In addition, by setting the airflow resistance of thesupport segment to be low, the vapor of a flavor component or the vaporof an aerosol-source material generated in the flavor-generating segment21 can be prevented from being greatly reduced by filtration andadsorption.

<First Modification of Lining Sheet>

FIGS. 16(a) to 16(d) are diagrams each depicting a modification of thelining sheet. The lining sheet is not particularly limited as long as itat least wraps a portion of the flavor-generating segment 21 and aportion of the mouthpiece segment 22, and the lining sheet can also wrapother segments in addition to these segments. For example, in aconfiguration in which the end segment 26 and the support segment 27 areprovided, the end segment 26, the flavor-generating segment 21, thesupport segment 27, and the mouthpiece segment 22 may be wrapped withthe single lining sheet 25 as illustrated in FIGS. 16(a) to 16(d). Byusing the lining sheet 25 that is very comfortable to hold in a user'smouth and that has favorable printability, thenon-combustion-heating-type tobacco 2 having favorable usage quality andfavorable appearance quality can be obtained.

Although the lining sheet is not particularly limited as long as it atleast wraps a portion of the flavor-generating segment 21 and a portionof the mouthpiece segment 22, from the standpoint of ensuring sufficientholding comfortability and sufficient printability, it is preferablethat the lining sheet 25 at least wrap a portion of theflavor-generating segment 21 and the entire mouthpiece segment 22.

The lining sheet 25 is not particularly limited, and for example, thelining sheet 25 can contain pulp as its main component. Regardingexamples of the pulp, the lining sheet 25 may be made of a wood pulp,such as coniferous tree pulp or broadleaf tree pulp, or may be made ofmixing a non-wood pulp, such as a flax pulp, a cannabis pulp, a sisalhemp pulp, or an esparto pulp, that is typically used in wrapping paperfor tobacco articles. Among these pulps, a single type of pulp may besolely used, or any two or more types of the pulps may be used incombination in any ratio.

In addition, the lining sheet 25 may be formed of a single sheet or maybe formed of a plurality of sheets.

Examples of pulps that can be used include a chemical pulp, a groundpulp, a chemiground pulp, and a thermomechanical pulp that are producedby kraft cooking, acidic, neutral, or alkaline sulfite cooking, sodiumsalt cooking, or the like.

Note that the lining sheet 25 may be manufactured by a manufacturingmethod, which will be described later, or may be a commerciallyavailable product.

The shape of the lining sheet 25 is not particularly limited and may be,for example, a square shape or a rectangular shape.

Although the thickness of the lining sheet 25 is not particularlylimited, from the standpoint of holding comfortability and printability,the thickness of the lining sheet is normally 30-60 μm, inclusive, andpreferably 40-50 μm, inclusive.

Although the basis weight of the lining sheet 25 is not particularlylimited, from the standpoint of holding comfortability and printability,the basis weight of the lining sheet 25 is normally 30-60 gsm,inclusive, preferably 35-50 gsm, inclusive, and more preferably 35-40gsm, inclusive.

Although the air permeability of the lining sheet 25 is not particularlylimited, from the standpoint of holding comfortability and printability,the air permeability of the lining sheet 25 is normally 0-30 Corestaunits, and it is preferable that the air permeability of the liningsheet 25 be greater than 0 Coresta unit and equal to or less than 15Coresta units. The term “air permeability” refers to a value measured inconformity with ISO 2965:2009 and is expressed as an amount (cm³) of agas that passes through an area of 1 cm² per minute when a pressuredifference between the surfaces of paper is 1 kPa. Note that 1 Corestaunit (1 Coresta unit, 1 C.U.) is cm³/(min·cm²) at 1 kPa.

Although the smoothness of the lining sheet 25 is not particularlylimited, from the standpoint of holding comfortability and printability,the smoothness of the lining sheet 25 is normally 200-1,500 seconds,inclusive, preferably 250-1,000 seconds, inclusive, and more preferably300-500 seconds, inclusive.

Although the opacity of the lining sheet 25 is not particularly limited,from the standpoint of ensuring desired appearance quality, the opacityof the lining sheet 25 is normally 70-100%, inclusive, preferably75-95%, inclusive, and more preferably, 80-90%, inclusive.

The opacity is measured by using a photovolt reflectometer in accordancewith JIS-P8138. The smoothness is measured in accordance with JIS-P8117and JIS-P8119. The basis weight of the sheet is measured in accordancewith JIS-P8124.

From the standpoint of being able to block leakage and staining of theliquid contained in the fillers 211 of the flavor-generating segment 21,it is preferable that the lining sheet 25 be a liquid-impermeable sheetexamples of which include a sheet obtained by bonding a polymer filmcontaining polyolefin, polyester, or the like as its main component andpaper together, and a sheet obtained by applying a coating agent, suchas modified cellulose, modified starch, or polyvinyl alcohol, to paper.

The lining sheet 25 may contain a filler in addition to theabove-mentioned pulps. Examples of the filler include metal carbonatessuch as calcium carbonate and magnesium carbonate, metal oxides such astitanium oxide, titanium dioxide, and aluminum oxide, metal sulfatessuch as barium sulfate and calcium sulfate, a metal sulfide such as zincsulfide, quartz, kaolin, talc, diatomaceous earth, and gypsum. Inparticular, from the standpoint of improving brightness and opacity andincreasing heating rate, calcium carbonate is preferably contained. Oneof these fillers may be used alone, or any two or more of them may beused in combination in any ratio.

In addition to the above-mentioned pulp and or filler, various auxiliaryagents may be added to the lining sheet 25. For example, the liningsheet 25 may include a water resistance improver in order to improvepaper strength when moisture is contained therein. Examples of the waterresistance improver include a wet strength agent (a WS agent) and asizing agent. Examples of the wet strength agent include a ureaformaldehyde resin, a melamine formaldehyde resin, and polyamideepichlorohydrin (PAE). Examples of the sizing agent include a rosinsoap, an alkyl ketene dimer (AKD), alkenylsuccinic anhydride (ASA), andhighly saponified polyvinyl alcohol having a degree of saponification of90% or more.

A coating agent may be added to at least one of the front and rearsurfaces of the lining sheet 25. Although the coating agent is notparticularly limited, a coating agent capable of forming a film on asurface of paper and reducing liquid permeability is preferable.

As an example of the coating agent, a lip release agent may be appliedto the outer side of the lining sheet 25, and in this case, thecomfortability of holding the lining sheet 25 in a user's mouth isimproved. As the lip release agent, for example, nitrocellulose,ethylcellulose, or the like can be used. In the case where the liprelease agent is applied to the inner side of the lining sheet 25, aliquid component, such as the aerosol-source material contained in theflavor-generating segment 21, can be prevented from permeating thelining sheet 25.

The plurality of segments can be fixed in place by the lining sheet 25by arranging the plurality of segments on one surface of the inningsheet 25 (the inner side surface of the inning sheet 25 when thesegments are wrapped with the inning sheet 25) before or after applyinga glue, such as a vinyl acetate emulsion or a starch glue, to theentirety or a portion of the one surface of the inning sheet 25 and thenwrapping the plurality of segments. The lining sheet 25 may include awrap portion that has a width of 1 mm to 3 mm when the lining sheet 25wraps, and the wrap portion is also glued and fixed in place.

A gluing pattern of the lining sheet 25 is illustrated in FIG. 17 . InFIG. 17 , reference sign 25 a denotes a glued portion, and referencesign 25 b denotes non-glued portion.

FIG. 17(a) illustrates a pattern in which the glue is applied to theentire surface of the lining sheet 25.

FIG. 17(b) illustrates a pattern in which the glue is applied to aportion (the entire edge portion) of the lining sheet 25.

FIG. 17(c) illustrates a pattern in which the glue is applied toportions (an edge portion used for fixing an overlapping portion of thelining sheet 25 in place and an inner portion for fixing the pluralityof segments in place) of the lining sheet 25.

FIG. 17(d) illustrates another pattern in which the glue is applied toportions (the edge portion used for fixing an overlapping portion of thelining sheet 25 in place and an inner portion for fixing the pluralityof segments in place) of the lining sheet 25.

<Second Modification of Lining Sheet>

The lining sheet 25 may include a plurality of sheet materials (alsosimply referred to as “sheets”), and the lining sheet 25 may be formedof two sheet materials or may be formed of three or more sheetmaterials. However, it is preferable that the lining sheet 25 be formedof two sheets from the standpoint of manufacturing costs. Theconfiguration of the lining sheet 25 in the case where the lining sheet25 includes a plurality of sheet materials is not particularly limited,and for example, the sheet materials may be laminated so as to partiallyoverlap each other or may be laminated so as to entirely overlap eachother. However, it is preferable that the lining sheet 25 be formed soas to include a first sheet material (also simply referred to as a“first sheet”) and a second sheet material (also simply referred to as a“second sheet”), which will be described later. Regarding conditionssuch as the material, the shape, the characteristics of each sheetmaterial, the conditions mentioned in the above first modification canbe applied. The materials, the shapes, and the characteristics of thesheet materials may be the same or different from each other.

More specifically, it is preferable that the sheet 25 be formed so as toinclude at least the first sheet and the second sheet that is positionedoutside the first sheet and downstream from the first sheet.

In addition, in a configuration in which the mouthpiece segment 22includes the cooling segment 23 and the filter segment 24 and in whichthe cooling segment 23 is positioned upstream from the filter segment24, as illustrated in FIGS. 18(a) to 18(d), it is more preferable thatthe lining sheet 25 at least include the first sheet wrapping a portionof the flavor-generating segment and a portion of the cooling segmentand the second sheet positioned outside the first sheet and wrapping atleast the entire filter segment and a portion of the cooling segment. Asin this configuration, in the case where a plurality of short segmentsare connected to each other by a single type of lining sheet, thesegments become out of alignment. However, by connecting the segments instages as in the present configuration, the segments can be preventedfrom becoming out of alignment. In addition, one of main conditionsrequired for the first sheet is to block leakage and staining of theliquid contained in the fillers 211 of the flavor-generating segment 21by losing liquid permeability, and one of main conditions required forthe second sheet is to be comfortable to hold in a user's mouth and tohave favorable printability. It is advantageous in that sheets suitablefor these required conditions can be individually selected.

In addition, in the case where the non-combustion-heating-type flavorinhalation article includes the end segment 26 and the support segment27, the non-combustion-heating-type flavor inhalation article mayinclude a first sheet 28 that wraps the end segment 26, theflavor-generating segment 21, and the support segment 27, and a secondsheet 29 that connects the mouthpiece segment 22 to the end segment 26,the flavor-generating segment 21, and the support segment 27, which arewrapped with the first sheet 28.

The first sheet 28 may have a water-resistant function and/or liquidimpermeability. A sheet with a suitable surface that offers acomfortable hold in a user's mouth or a sheet with a suitable surfacethat provides excellent printability may be used as the second sheet.

In the case where the second sheet is placed at a position such as thatillustrated in FIGS. 18(a) to 18(d), it is preferable to be usedtogether with an electrical heating type device that has at least twoprotrusions formed on the side walls forming the cavity 35 of thechamber as illustrated in FIG. 2 and that is designed such that at leasttwo of these protrusions, or preferably three of the protrusions, areprovided so as to come into contact with the second sheet when thenon-combustion-heating-type flavor inhalation article is inserted so asto reach the bottom surface, which is the deepest portion of the cavity.More specifically, in such an aspect, when the non-combustion heatingtobacco is inserted into the cavity of the electrical heating typedevice, a user can feel an end surface of the second sheet making intocontact or engaging with the cavity of the electrical heating typedevice, so that excessive insertion of the tobacco can be prevented. Inaddition, the fixing strength of the non-combustion heating tobacco bythe protrusions can be increased. In addition, by wrapping the entirenon-combustion heating tobacco with the lining sheet as illustrated inFIGS. 18(b) and 18(d), the rod strength of the non-combustion heatingtobacco is increased, and the non-combustion heating tobacco can beprevented from being buckled and damaged when the tobacco is pulled outof and inserted into the cavity of the heating type device. In addition,a decrease in the strength of the lining sheet due to the liquidcomponent contained in the fillers in the flavor-generating segment canbe suppressed, and a decrease in the strength due to heating during use(scorching in the case of a cellulose-based sheet, and melting in thecase of a polymer-based sheet) can be suppressed. If the strength of thelining sheet is low, the lining sheet may be torn when thenon-combustion-heating-type tobacco 2 is pulled out of the electricalheating type device after use, and there is a possibility that somesegments such as the flavor-generating segment may remain in the cavity35. Therefore, it is important to secure the strength of the liningsheet.

The conditions of the first sheet 28 and the second sheet 29, such astheir materials, shapes, and characteristics, are not particularlylimited, and the above-mentioned conditions of the lining sheet 25 canbe applied in a similar manner as long as it can be provided.

Although the thickness of the first sheet 28 is not particularlylimited, from the standpoint of holding comfortability and printability,the thickness of the first sheet 28 is normally 30-60 μm, inclusive, andpreferably 40-50 μm, inclusive.

Although the basis weight of the first sheet 28 is not particularlylimited, from the standpoint of holding comfortability and printability,the basis weight of the first sheet 28 is normally 30-60 gsm, inclusive,preferably 35-50 gsm, inclusive, and more preferably 35-40 gsm,inclusive.

Although the air permeability of the first sheet 28 is not particularlylimited, from the standpoint of holding comfortability and printability,the air permeability of the first sheet 28 is normally 0-30 Corestaunits, and it is preferable that the air permeability of the first sheet28 be greater than 0 Coresta unit and equal to or less than 15 Corestaunits. The term “air permeability” refers to a value measured inconformity with ISO 2965:2009 and is expressed as an amount (cm³) of agas that passes through an area of 1 cm² per minute when a pressuredifference between the surfaces of paper is 1 kPa. Note that 1 Corestaunit (1 Coresta unit, 1 C.U.) is cm³/(min·cm²) at 1 kPa.

Although the smoothness of the first sheet 28 is not particularlylimited, from the standpoint of holding comfortability and printability,the smoothness of the first sheet 28 is normally 200-1,500 seconds,inclusive, preferably 250-1,000 seconds, inclusive, and more preferably300-500 seconds, inclusive.

Although the opacity of the first sheet 28 is not particularly limited,from the standpoint of ensuring desired appearance quality, the opacityof the first sheet 28 is normally 70-100%, inclusive, preferably 75-95%,inclusive, and more preferably, 80-90%, inclusive.

From the standpoint of being able to block leakage and staining of theliquid contained in the fillers 211 of the flavor-generating segment 21,it is preferable that the first sheet 28 be a liquid-impermeable sheet,and for example, the above-mentioned liquid-impermeable materials can beused in a similar manner as the material of liquid-impermeable sheet.

Although the thickness of the second sheet 29 is not particularlylimited, from the standpoint of holding comfortability and printability,the thickness of the second sheet 29 is normally 30-60 μm inclusive, andpreferably 40-50 μm, inclusive.

Although the basis weight of the second sheet 29 is not particularlylimited, from the standpoint of holding comfortability and printability,the basis weight of the second sheet 29 is normally 30-60 gsm,inclusive, preferably 35-50 gsm, inclusive, and more preferably 35-40gsm, inclusive.

Although the air permeability of the second sheet 29 is not particularlylimited, from the standpoint of holding comfortability and printability,the air permeability of the second sheet 29 is normally 0-30 Corestaunits, and it is preferable that the air permeability of the secondsheet 29 be greater than 0 Coresta unit and equal to or less than 15Coresta units. The term “air permeability” refers to a value measured inconformity with ISO 2965:2009 and is expressed as an amount (cm³) of agas that passes through an area of 1 cm² per minute when a pressuredifference between the surfaces of paper is 1 kPa. Note that 1 Corestaunit (1 Coresta unit, 1 C.U.) is cm³/(min·cm²) at 1 kPa.

Although the smoothness of the second sheet 29 is not particularlylimited, from the standpoint of holding comfortability and printability,the smoothness of the second sheet 29 is normally 200-1,500 seconds,inclusive, preferably 250-1,000 seconds, inclusive, and more preferably300-500 seconds, inclusive.

Although the opacity of the second sheet 29 is not particularly limited,from the standpoint of ensuring desired appearance quality, the opacityof the second sheet 29 is normally 70-100%, inclusive, preferably75-95%, inclusive, and more preferably, 80-90%, inclusive.

<Others>

The configurations of the embodiment and the modifications describedabove can be combined to the fullest extent possible without departingfrom the problem and the technical idea of the present invention.

REFERENCE SIGNS LIST

-   -   1 non-combustion-heating-type flavor inhalation product    -   2 non-combustion-heating-type tobacco    -   200 metal plate    -   21 flavor-generating segment    -   211 filler    -   212 plate-shaped susceptor    -   2121 raised portion    -   2122 through hole    -   2123 first curved surface portion    -   2124 second curved surface portion    -   2125 protrusion    -   2126 chamfered portion    -   213 wrapping paper    -   214 first coating layer    -   2141 chamfered portion    -   215 second coating layer    -   216 granular susceptor    -   22 mouthpiece segment    -   23 cooling segment    -   231 perforation    -   24 filter segment    -   25 lining sheet    -   25 a glued portion    -   25 b non-glued portion    -   26 end segment    -   27 support segment    -   28 first sheet    -   29 second sheet    -   3 electric heating type device    -   31 body    -   32 inductor    -   33 battery unit    -   34 control unit    -   35 cavity    -   36 airflow path    -   37 protrusion    -   4 manufacturing apparatus    -   41 roller    -   42 cutter    -   43 coating unit    -   44 oven

What is claimed is:
 1. A non-combustion-heating-type flavor inhalationproduct comprising: an electrical heating type device comprising aninductor for electromagnetic induction heating; and anon-combustion-heating-type flavor inhalation article used together withthe electrical heating type device, wherein the electrical heating typedevice comprises an inductor for electromagnetic induction heating, apower source that supplies operation power to the inductor, and aheating chamber into which the non-combustion-heating-type flavorinhalation article can be inserted via an insertion slot, wherein atleast two protrusions are provided on a side wall that forms a cavity ofthe chamber, and a height of the protrusions from the side wall isgreater than or equal to 0.3 mm and less than or equal to 2.0 mm,wherein the non-combustion-heating-type flavor inhalation articleincludes a flavor-generating segment that includes aflavor-generating-segment filler containing an aerosol-source materialand a plate-shaped susceptor for electromagnetic induction heating ofthe flavor-generating-segment filler, and a mouthpiece segment forinhaling a flavor component, and wherein a compression change rate ofeach of the segments, as measured by pressing each airflow-directioncentral part of the flavor-generating segment and the mouthpiece segmentof the non-combustion-heating-type flavor inhalation article inaccordance with a compression change rate measurement method below, is70% or greater, compression change rate measurement method: a load F of2 kgf is applied to 10 or 20 samples simultaneously, the 10 or 20samples being arranged side by side in a horizontal direction, from anupper side to a lower side by using a measuring instrument DD60Amanufactured by Borgwaldt Co., Ltd.; after the load F has been appliedfor 5 seconds, an average of diameters of rod portions is measured; acompression change rate (%) is expressed by a formula below;compression change rate (%)=100×(Dd (diameter after deformation))/(Ds(diameter before deformation)) where Dd stands for a diameter of a rodportion that has been reduced as a result of a load F being applied tothe rod portion, and Ds stands for a diameter of the rod portion beforethe load F is applied; in the method, measurement is performed 10 timesfor each set of 10 or 20 samples, and an average value of results of themeasurement performed 10 times is used as a measurement result.
 2. Thenon-combustion-heating-type flavor inhalation product according to claim1, wherein the mouthpiece segment includes a cooling segment and afilter segment, and the cooling segment is positioned upstream from thefilter segment, wherein the non-combustion-heating-type flavorinhalation article further includes a lining sheet including a firstsheet material at least wrapping a portion of the flavor-generatingsegment and a portion of the cooling segment and a second sheet materialdisposed outside the first sheet material and at least wrapping theentire filter segment and a portion of the cooling segment, and whereinat least two of the protrusions are provided in such a manner as to comeinto contact with the second sheet material when thenon-combustion-heating-type flavor inhalation article is inserted so asto reach a bottom surface that is the deepest portion of the cavity. 3.The non-combustion-heating-type flavor inhalation product according toclaim 2, wherein three of the protrusions are provided in such a manneras to come into contact with the second sheet material when thenon-combustion-heating-type flavor inhalation article is inserted so asto reach the bottom surface, which is the deepest portion of the cavity.4. The non-combustion-heating-type flavor inhalation product accordingto claim 1, wherein the flavor-generating-segment filler comprises atleast one selected from tobacco leaves, shredded tobacco, a tobaccosheet, tobacco granules, a nicotine-carrying ion-exchange resin, and atobacco extract.
 5. The non-combustion-heating-type flavor inhalationproduct according to claim 3, wherein the flavor-generating-segmentfiller comprises a tobacco sheet, and the tobacco sheet is inserted in agathered manner after being crimped.
 6. The non-combustion-heating-typeflavor inhalation product according to claim 1, wherein a fillingdensity of the flavor-generating-segment filler in the flavor-generatingsegment is greater than or equal to 0.2 g/cm³ and less than or equal to0.7 g/cm³.
 7. The non-combustion-heating-type flavor inhalation productaccording to claim 1, wherein the mouthpiece segment further includes afilter segment, and the filter segment includes a filter element andwrapping paper wrapping the filter element, the wrapping paper having athickness of 40 μm to 100 μm, and a basis weight of 23 gsm to 90 gsm. 8.The non-combustion-heating-type flavor inhalation product according toclaim 7, wherein the non-combustion-heating-type flavor inhalationarticle further includes an end segment and a support segment, and theend segment, the support segment, and the filter segment containcellulose acetate fibers.
 9. The non-combustion-heating-type flavorinhalation product according to claim 8, wherein the end segment, thesupport segment, and the filter segment are each a solidified membercontaining cellulose acetate fibers and a plasticizer.